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Finding the Fourth Proportional to 618,882.73, 928,332.29 and 198,158.60

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Solution

The fourth proportional to 618,882.73, 928,332.29 and 198,158.60 is: 297,240.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,882.73 : 928,332.29 = 198,158.60 : x
  2. Step 2: Convert to fraction form
    618,882.73/928,332.29 = 198,158.60/x
  3. Step 3: Cross multiply
    618,882.73x = 928,332.29 × 198,158.60
  4. Step 4: Simplify right side
    618,882.73x = 183,957,029,737.42
  5. Step 5: Solve for x
    x = 183,957,029,737.42/618,882.73
  6. Step 6: Final answer
    x = 297,240.53

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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.