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Finding the Fourth Proportional to 344,354.72, 516,531.38 and 91,635.21

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Solution

The fourth proportional to 344,354.72, 516,531.38 and 91,635.21 is: 137,452.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,354.72 : 516,531.38 = 91,635.21 : x
  2. Step 2: Convert to fraction form
    344,354.72/516,531.38 = 91,635.21/x
  3. Step 3: Cross multiply
    344,354.72x = 516,531.38 × 91,635.21
  4. Step 4: Simplify right side
    344,354.72x = 47,332,461,019.71
  5. Step 5: Solve for x
    x = 47,332,461,019.71/344,354.72
  6. Step 6: Final answer
    x = 137,452.63

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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.