Home / 387,789.50-581,684.26-107,306.76

Finding the Fourth Proportional to 387,789.50, 581,684.26 and 107,306.76

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Solution

The fourth proportional to 387,789.50, 581,684.26 and 107,306.76 is: 160,960.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,789.50 : 581,684.26 = 107,306.76 : x
  2. Step 2: Convert to fraction form
    387,789.50/581,684.26 = 107,306.76/x
  3. Step 3: Cross multiply
    387,789.50x = 581,684.26 × 107,306.76
  4. Step 4: Simplify right side
    387,789.50x = 62,418,653,283.60
  5. Step 5: Solve for x
    x = 62,418,653,283.60/387,789.50
  6. Step 6: Final answer
    x = 160,960.14

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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.