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Finding the Fourth Proportional to 381,834.72, 572,707.20 and 101,373.60

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Solution

The fourth proportional to 381,834.72, 572,707.20 and 101,373.60 is: 152,048.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,834.72 : 572,707.20 = 101,373.60 : x
  2. Step 2: Convert to fraction form
    381,834.72/572,707.20 = 101,373.60/x
  3. Step 3: Cross multiply
    381,834.72x = 572,707.20 × 101,373.60
  4. Step 4: Simplify right side
    381,834.72x = 58,057,390,609.92
  5. Step 5: Solve for x
    x = 58,057,390,609.92/381,834.72
  6. Step 6: Final answer
    x = 152,048.48

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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.