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Finding the Fourth Proportional to 359,654.85, 496,288.35 and 198,499.55

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Solution

The fourth proportional to 359,654.85, 496,288.35 and 198,499.55 is: 273,909.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,654.85 : 496,288.35 = 198,499.55 : x
  2. Step 2: Convert to fraction form
    359,654.85/496,288.35 = 198,499.55/x
  3. Step 3: Cross multiply
    359,654.85x = 496,288.35 × 198,499.55
  4. Step 4: Simplify right side
    359,654.85x = 98,513,011,663.80
  5. Step 5: Solve for x
    x = 98,513,011,663.80/359,654.85
  6. Step 6: Final answer
    x = 273,909.87

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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.