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Finding the Fourth Proportional to 499,981.92, 750,118.11 and 180,127.71

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Solution

The fourth proportional to 499,981.92, 750,118.11 and 180,127.71 is: 270,243.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,981.92 : 750,118.11 = 180,127.71 : x
  2. Step 2: Convert to fraction form
    499,981.92/750,118.11 = 180,127.71/x
  3. Step 3: Cross multiply
    499,981.92x = 750,118.11 × 180,127.71
  4. Step 4: Simplify right side
    499,981.92x = 135,117,057,383.83
  5. Step 5: Solve for x
    x = 135,117,057,383.83/499,981.92
  6. Step 6: Final answer
    x = 270,243.89

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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.