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Finding the Fourth Proportional to 381,710.20, 572,565.30 and 101,255.80

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Solution

The fourth proportional to 381,710.20, 572,565.30 and 101,255.80 is: 151,883.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,710.20 : 572,565.30 = 101,255.80 : x
  2. Step 2: Convert to fraction form
    381,710.20/572,565.30 = 101,255.80/x
  3. Step 3: Cross multiply
    381,710.20x = 572,565.30 × 101,255.80
  4. Step 4: Simplify right side
    381,710.20x = 57,975,557,503.74
  5. Step 5: Solve for x
    x = 57,975,557,503.74/381,710.20
  6. Step 6: Final answer
    x = 151,883.70

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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.