Home / 381,723.92-572,586-145,010.72

Finding the Fourth Proportional to 381,723.92, 572,586 and 145,010.72

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Solution

The fourth proportional to 381,723.92, 572,586 and 145,010.72 is: 217,516.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,723.92 : 572,586 = 145,010.72 : x
  2. Step 2: Convert to fraction form
    381,723.92/572,586 = 145,010.72/x
  3. Step 3: Cross multiply
    381,723.92x = 572,586 × 145,010.72
  4. Step 4: Simplify right side
    381,723.92x = 83,031,108,121.92
  5. Step 5: Solve for x
    x = 83,031,108,121.92/381,723.92
  6. Step 6: Final answer
    x = 217,516.13

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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.