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Finding the Fourth Proportional to 618,089.28, 927,061.92 and 168,792

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Solution

The fourth proportional to 618,089.28, 927,061.92 and 168,792 is: 253,168.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,089.28 : 927,061.92 = 168,792 : x
  2. Step 2: Convert to fraction form
    618,089.28/927,061.92 = 168,792/x
  3. Step 3: Cross multiply
    618,089.28x = 927,061.92 × 168,792
  4. Step 4: Simplify right side
    618,089.28x = 156,480,635,600.64
  5. Step 5: Solve for x
    x = 156,480,635,600.64/618,089.28
  6. Step 6: Final answer
    x = 253,168.34

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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.