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Finding the Fourth Proportional to 147.87, 204.42 and 146.49

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Solution

The fourth proportional to 147.87, 204.42 and 146.49 is: 202.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    147.87 : 204.42 = 146.49 : x
  2. Step 2: Convert to fraction form
    147.87/204.42 = 146.49/x
  3. Step 3: Cross multiply
    147.87x = 204.42 × 146.49
  4. Step 4: Simplify right side
    147.87x = 29,945.49
  5. Step 5: Solve for x
    x = 29,945.49/147.87
  6. Step 6: Final answer
    x = 202.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.