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Finding the Fourth Proportional to 381,530.95, 572,416.71 and 239,475.04

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Solution

The fourth proportional to 381,530.95, 572,416.71 and 239,475.04 is: 359,288.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,530.95 : 572,416.71 = 239,475.04 : x
  2. Step 2: Convert to fraction form
    381,530.95/572,416.71 = 239,475.04/x
  3. Step 3: Cross multiply
    381,530.95x = 572,416.71 × 239,475.04
  4. Step 4: Simplify right side
    381,530.95x = 137,079,514,523.92
  5. Step 5: Solve for x
    x = 137,079,514,523.92/381,530.95
  6. Step 6: Final answer
    x = 359,288.06

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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.