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Finding the Fourth Proportional to 359,363.62, 495,913.11 and 198,215.21

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Solution

The fourth proportional to 359,363.62, 495,913.11 and 198,215.21 is: 273,532.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,363.62 : 495,913.11 = 198,215.21 : x
  2. Step 2: Convert to fraction form
    359,363.62/495,913.11 = 198,215.21/x
  3. Step 3: Cross multiply
    359,363.62x = 495,913.11 × 198,215.21
  4. Step 4: Simplify right side
    359,363.62x = 98,297,517,769.76
  5. Step 5: Solve for x
    x = 98,297,517,769.76/359,363.62
  6. Step 6: Final answer
    x = 273,532.19

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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.