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Finding the Fourth Proportional to 146.03, 218.63 and 125.39

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Solution

The fourth proportional to 146.03, 218.63 and 125.39 is: 187.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    146.03 : 218.63 = 125.39 : x
  2. Step 2: Convert to fraction form
    146.03/218.63 = 125.39/x
  3. Step 3: Cross multiply
    146.03x = 218.63 × 125.39
  4. Step 4: Simplify right side
    146.03x = 27,412.30
  5. Step 5: Solve for x
    x = 27,412.30/146.03
  6. Step 6: Final answer
    x = 187.72

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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.