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Finding the Fourth Proportional to 491,489.60, 737,234.40 and 242,657.60

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Solution

The fourth proportional to 491,489.60, 737,234.40 and 242,657.60 is: 363,986.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,489.60 : 737,234.40 = 242,657.60 : x
  2. Step 2: Convert to fraction form
    491,489.60/737,234.40 = 242,657.60/x
  3. Step 3: Cross multiply
    491,489.60x = 737,234.40 × 242,657.60
  4. Step 4: Simplify right side
    491,489.60x = 178,895,530,141.44
  5. Step 5: Solve for x
    x = 178,895,530,141.44/491,489.60
  6. Step 6: Final answer
    x = 363,986.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.