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Finding the Fourth Proportional to 491,422.60, 737,133.90 and 242,590.60

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Solution

The fourth proportional to 491,422.60, 737,133.90 and 242,590.60 is: 363,885.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,422.60 : 737,133.90 = 242,590.60 : x
  2. Step 2: Convert to fraction form
    491,422.60/737,133.90 = 242,590.60/x
  3. Step 3: Cross multiply
    491,422.60x = 737,133.90 × 242,590.60
  4. Step 4: Simplify right side
    491,422.60x = 178,821,755,081.34
  5. Step 5: Solve for x
    x = 178,821,755,081.34/491,422.60
  6. Step 6: Final answer
    x = 363,885.90

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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.