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Finding the Fourth Proportional to 418,487.22, 627,811.63 and 178,597.62

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Solution

The fourth proportional to 418,487.22, 627,811.63 and 178,597.62 is: 267,930.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,487.22 : 627,811.63 = 178,597.62 : x
  2. Step 2: Convert to fraction form
    418,487.22/627,811.63 = 178,597.62/x
  3. Step 3: Cross multiply
    418,487.22x = 627,811.63 × 178,597.62
  4. Step 4: Simplify right side
    418,487.22x = 112,125,662,033.33
  5. Step 5: Solve for x
    x = 112,125,662,033.33/418,487.22
  6. Step 6: Final answer
    x = 267,930.91

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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.