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Finding the Fourth Proportional to 359,128.43, 495,600.43 and 197,989.14

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Solution

The fourth proportional to 359,128.43, 495,600.43 and 197,989.14 is: 273,226.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,128.43 : 495,600.43 = 197,989.14 : x
  2. Step 2: Convert to fraction form
    359,128.43/495,600.43 = 197,989.14/x
  3. Step 3: Cross multiply
    359,128.43x = 495,600.43 × 197,989.14
  4. Step 4: Simplify right side
    359,128.43x = 98,123,502,424.36
  5. Step 5: Solve for x
    x = 98,123,502,424.36/359,128.43
  6. Step 6: Final answer
    x = 273,226.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.