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Finding the Fourth Proportional to 202.25, 278.91 and 132.29

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Solution

The fourth proportional to 202.25, 278.91 and 132.29 is: 182.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    202.25 : 278.91 = 132.29 : x
  2. Step 2: Convert to fraction form
    202.25/278.91 = 132.29/x
  3. Step 3: Cross multiply
    202.25x = 278.91 × 132.29
  4. Step 4: Simplify right side
    202.25x = 36,897.00
  5. Step 5: Solve for x
    x = 36,897.00/202.25
  6. Step 6: Final answer
    x = 182.43

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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.