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Finding the Fourth Proportional to 279,168.60, 418,583.97 and 125,266.38

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Solution

The fourth proportional to 279,168.60, 418,583.97 and 125,266.38 is: 187,823.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,168.60 : 418,583.97 = 125,266.38 : x
  2. Step 2: Convert to fraction form
    279,168.60/418,583.97 = 125,266.38/x
  3. Step 3: Cross multiply
    279,168.60x = 418,583.97 × 125,266.38
  4. Step 4: Simplify right side
    279,168.60x = 52,434,498,647.93
  5. Step 5: Solve for x
    x = 52,434,498,647.93/279,168.60
  6. Step 6: Final answer
    x = 187,823.77

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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.