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Finding the Fourth Proportional to 185.03, 278.10 and 124.55

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Solution

The fourth proportional to 185.03, 278.10 and 124.55 is: 187.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    185.03 : 278.10 = 124.55 : x
  2. Step 2: Convert to fraction form
    185.03/278.10 = 124.55/x
  3. Step 3: Cross multiply
    185.03x = 278.10 × 124.55
  4. Step 4: Simplify right side
    185.03x = 34,637.01
  5. Step 5: Solve for x
    x = 34,637.01/185.03
  6. Step 6: Final answer
    x = 187.20

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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.