Home / 905,156.34-1,357,734.47-231,239.12

Finding the Fourth Proportional to 905,156.34, 1,357,734.47 and 231,239.12

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Solution

The fourth proportional to 905,156.34, 1,357,734.47 and 231,239.12 is: 346,858.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,156.34 : 1,357,734.47 = 231,239.12 : x
  2. Step 2: Convert to fraction form
    905,156.34/1,357,734.47 = 231,239.12/x
  3. Step 3: Cross multiply
    905,156.34x = 1,357,734.47 × 231,239.12
  4. Step 4: Simplify right side
    905,156.34x = 313,961,324,036.47
  5. Step 5: Solve for x
    x = 313,961,324,036.47/905,156.34
  6. Step 6: Final answer
    x = 346,858.67

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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.