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Finding the Fourth Proportional to 147.89, 205.00 and 141.28

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Solution

The fourth proportional to 147.89, 205.00 and 141.28 is: 195.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    147.89 : 205.00 = 141.28 : x
  2. Step 2: Convert to fraction form
    147.89/205.00 = 141.28/x
  3. Step 3: Cross multiply
    147.89x = 205.00 × 141.28
  4. Step 4: Simplify right side
    147.89x = 28,961.53
  5. Step 5: Solve for x
    x = 28,961.53/147.89
  6. Step 6: Final answer
    x = 195.83

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.