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Finding the Fourth Proportional to 359,155.68, 495,612 and 198,001.92

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Solution

The fourth proportional to 359,155.68, 495,612 and 198,001.92 is: 273,230.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,155.68 : 495,612 = 198,001.92 : x
  2. Step 2: Convert to fraction form
    359,155.68/495,612 = 198,001.92/x
  3. Step 3: Cross multiply
    359,155.68x = 495,612 × 198,001.92
  4. Step 4: Simplify right side
    359,155.68x = 98,132,127,575.04
  5. Step 5: Solve for x
    x = 98,132,127,575.04/359,155.68
  6. Step 6: Final answer
    x = 273,230.06

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1.5x scale

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.