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Finding the Fourth Proportional to 491,377.32, 737,080.56 and 136,417.50

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Solution

The fourth proportional to 491,377.32, 737,080.56 and 136,417.50 is: 204,630.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,377.32 : 737,080.56 = 136,417.50 : x
  2. Step 2: Convert to fraction form
    491,377.32/737,080.56 = 136,417.50/x
  3. Step 3: Cross multiply
    491,377.32x = 737,080.56 × 136,417.50
  4. Step 4: Simplify right side
    491,377.32x = 100,550,687,293.80
  5. Step 5: Solve for x
    x = 100,550,687,293.80/491,377.32
  6. Step 6: Final answer
    x = 204,630.30

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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.