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Finding the Fourth Proportional to 181,638, 272,458.17 and 63,311.58

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Solution

The fourth proportional to 181,638, 272,458.17 and 63,311.58 is: 94,967.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,638 : 272,458.17 = 63,311.58 : x
  2. Step 2: Convert to fraction form
    181,638/272,458.17 = 63,311.58/x
  3. Step 3: Cross multiply
    181,638x = 272,458.17 × 63,311.58
  4. Step 4: Simplify right side
    181,638x = 17,249,757,226.61
  5. Step 5: Solve for x
    x = 17,249,757,226.61/181,638
  6. Step 6: Final answer
    x = 94,967.78

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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.