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Finding the Fourth Proportional to 491,727.60, 737,615.70 and 255,531.60

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Solution

The fourth proportional to 491,727.60, 737,615.70 and 255,531.60 is: 383,310.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,727.60 : 737,615.70 = 255,531.60 : x
  2. Step 2: Convert to fraction form
    491,727.60/737,615.70 = 255,531.60/x
  3. Step 3: Cross multiply
    491,727.60x = 737,615.70 × 255,531.60
  4. Step 4: Simplify right side
    491,727.60x = 188,484,120,006.12
  5. Step 5: Solve for x
    x = 188,484,120,006.12/491,727.60
  6. Step 6: Final answer
    x = 383,310.03

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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.