Home / 905,161.89-1,357,742.82-231,244.68

Finding the Fourth Proportional to 905,161.89, 1,357,742.82 and 231,244.68

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Solution

The fourth proportional to 905,161.89, 1,357,742.82 and 231,244.68 is: 346,867.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,161.89 : 1,357,742.82 = 231,244.68 : x
  2. Step 2: Convert to fraction form
    905,161.89/1,357,742.82 = 231,244.68/x
  3. Step 3: Cross multiply
    905,161.89x = 1,357,742.82 × 231,244.68
  4. Step 4: Simplify right side
    905,161.89x = 313,970,803,933.20
  5. Step 5: Solve for x
    x = 313,970,803,933.20/905,161.89
  6. Step 6: Final answer
    x = 346,867.02

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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.