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Finding the Fourth Proportional to 215.50, 297.32 and 132.58

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Solution

The fourth proportional to 215.50, 297.32 and 132.58 is: 182.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    215.50 : 297.32 = 132.58 : x
  2. Step 2: Convert to fraction form
    215.50/297.32 = 132.58/x
  3. Step 3: Cross multiply
    215.50x = 297.32 × 132.58
  4. Step 4: Simplify right side
    215.50x = 39,418.69
  5. Step 5: Solve for x
    x = 39,418.69/215.50
  6. Step 6: Final answer
    x = 182.92

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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.