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Finding the Fourth Proportional to 418,421.97, 627,597.41 and 165,633.73

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Solution

The fourth proportional to 418,421.97, 627,597.41 and 165,633.73 is: 248,436.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,421.97 : 627,597.41 = 165,633.73 : x
  2. Step 2: Convert to fraction form
    418,421.97/627,597.41 = 165,633.73/x
  3. Step 3: Cross multiply
    418,421.97x = 627,597.41 × 165,633.73
  4. Step 4: Simplify right side
    418,421.97x = 103,951,297,559.48
  5. Step 5: Solve for x
    x = 103,951,297,559.48/418,421.97
  6. Step 6: Final answer
    x = 248,436.52

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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.