Home / 418,314.52-627,570.18-137,831.76

Finding the Fourth Proportional to 418,314.52, 627,570.18 and 137,831.76

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Solution

The fourth proportional to 418,314.52, 627,570.18 and 137,831.76 is: 206,780.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,314.52 : 627,570.18 = 137,831.76 : x
  2. Step 2: Convert to fraction form
    418,314.52/627,570.18 = 137,831.76/x
  3. Step 3: Cross multiply
    418,314.52x = 627,570.18 × 137,831.76
  4. Step 4: Simplify right side
    418,314.52x = 86,499,102,432.92
  5. Step 5: Solve for x
    x = 86,499,102,432.92/418,314.52
  6. Step 6: Final answer
    x = 206,780.06

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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.