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Finding the Fourth Proportional to 508,451.94, 762,682.38 and 129,373.14

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Solution

The fourth proportional to 508,451.94, 762,682.38 and 129,373.14 is: 194,060.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,451.94 : 762,682.38 = 129,373.14 : x
  2. Step 2: Convert to fraction form
    508,451.94/762,682.38 = 129,373.14/x
  3. Step 3: Cross multiply
    508,451.94x = 762,682.38 × 129,373.14
  4. Step 4: Simplify right side
    508,451.94x = 98,670,614,323.27
  5. Step 5: Solve for x
    x = 98,670,614,323.27/508,451.94
  6. Step 6: Final answer
    x = 194,060.85

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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.