Home / 905,143.43-1,357,715.14-231,226.21

Finding the Fourth Proportional to 905,143.43, 1,357,715.14 and 231,226.21

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Solution

The fourth proportional to 905,143.43, 1,357,715.14 and 231,226.21 is: 346,839.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,143.43 : 1,357,715.14 = 231,226.21 : x
  2. Step 2: Convert to fraction form
    905,143.43/1,357,715.14 = 231,226.21/x
  3. Step 3: Cross multiply
    905,143.43x = 1,357,715.14 × 231,226.21
  4. Step 4: Simplify right side
    905,143.43x = 313,939,326,081.82
  5. Step 5: Solve for x
    x = 313,939,326,081.82/905,143.43
  6. Step 6: Final answer
    x = 346,839.32

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.