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Finding the Fourth Proportional to 418,168.80, 627,310.80 and 181,504.80

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Solution

The fourth proportional to 418,168.80, 627,310.80 and 181,504.80 is: 272,282.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,168.80 : 627,310.80 = 181,504.80 : x
  2. Step 2: Convert to fraction form
    418,168.80/627,310.80 = 181,504.80/x
  3. Step 3: Cross multiply
    418,168.80x = 627,310.80 × 181,504.80
  4. Step 4: Simplify right side
    418,168.80x = 113,859,921,291.84
  5. Step 5: Solve for x
    x = 113,859,921,291.84/418,168.80
  6. Step 6: Final answer
    x = 272,282.20

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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.