Home / 387,126.71-580,557.66-147,182.73

Finding the Fourth Proportional to 387,126.71, 580,557.66 and 147,182.73

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Solution

The fourth proportional to 387,126.71, 580,557.66 and 147,182.73 is: 220,723.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,126.71 : 580,557.66 = 147,182.73 : x
  2. Step 2: Convert to fraction form
    387,126.71/580,557.66 = 147,182.73/x
  3. Step 3: Cross multiply
    387,126.71x = 580,557.66 × 147,182.73
  4. Step 4: Simplify right side
    387,126.71x = 85,448,061,321.21
  5. Step 5: Solve for x
    x = 85,448,061,321.21/387,126.71
  6. Step 6: Final answer
    x = 220,723.76

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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.