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Finding the Fourth Proportional to 359,353.20, 495,909.78 and 198,212.62

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Solution

The fourth proportional to 359,353.20, 495,909.78 and 198,212.62 is: 273,534.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,353.20 : 495,909.78 = 198,212.62 : x
  2. Step 2: Convert to fraction form
    359,353.20/495,909.78 = 198,212.62/x
  3. Step 3: Cross multiply
    359,353.20x = 495,909.78 × 198,212.62
  4. Step 4: Simplify right side
    359,353.20x = 98,295,576,777.42
  5. Step 5: Solve for x
    x = 98,295,576,777.42/359,353.20
  6. Step 6: Final answer
    x = 273,534.72

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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.