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Finding the Fourth Proportional to 359,275.85, 495,790.90 and 198,127.97

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Solution

The fourth proportional to 359,275.85, 495,790.90 and 198,127.97 is: 273,411.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,275.85 : 495,790.90 = 198,127.97 : x
  2. Step 2: Convert to fraction form
    359,275.85/495,790.90 = 198,127.97/x
  3. Step 3: Cross multiply
    359,275.85x = 495,790.90 × 198,127.97
  4. Step 4: Simplify right side
    359,275.85x = 98,230,041,587.20
  5. Step 5: Solve for x
    x = 98,230,041,587.20/359,275.85
  6. Step 6: Final answer
    x = 273,411.20

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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.