Home / 387,344.28-581,049.90-106,861.53

Finding the Fourth Proportional to 387,344.28, 581,049.90 and 106,861.53

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Solution

The fourth proportional to 387,344.28, 581,049.90 and 106,861.53 is: 160,301.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,344.28 : 581,049.90 = 106,861.53 : x
  2. Step 2: Convert to fraction form
    387,344.28/581,049.90 = 106,861.53/x
  3. Step 3: Cross multiply
    387,344.28x = 581,049.90 × 106,861.53
  4. Step 4: Simplify right side
    387,344.28x = 62,091,881,320.35
  5. Step 5: Solve for x
    x = 62,091,881,320.35/387,344.28
  6. Step 6: Final answer
    x = 160,301.53

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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.