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Finding the Fourth Proportional to 381,500.99, 572,251.53 and 144,843.80

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Solution

The fourth proportional to 381,500.99, 572,251.53 and 144,843.80 is: 217,265.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,500.99 : 572,251.53 = 144,843.80 : x
  2. Step 2: Convert to fraction form
    381,500.99/572,251.53 = 144,843.80/x
  3. Step 3: Cross multiply
    381,500.99x = 572,251.53 × 144,843.80
  4. Step 4: Simplify right side
    381,500.99x = 82,887,083,842.92
  5. Step 5: Solve for x
    x = 82,887,083,842.92/381,500.99
  6. Step 6: Final answer
    x = 217,265.71

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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.