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Finding the Fourth Proportional to 491,437.49, 737,333.64 and 171,636.44

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Solution

The fourth proportional to 491,437.49, 737,333.64 and 171,636.44 is: 257,516.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,437.49 : 737,333.64 = 171,636.44 : x
  2. Step 2: Convert to fraction form
    491,437.49/737,333.64 = 171,636.44/x
  3. Step 3: Cross multiply
    491,437.49x = 737,333.64 × 171,636.44
  4. Step 4: Simplify right side
    491,437.49x = 126,553,317,375.17
  5. Step 5: Solve for x
    x = 126,553,317,375.17/491,437.49
  6. Step 6: Final answer
    x = 257,516.61

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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.