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Finding the Fourth Proportional to 221.74, 332.59 and 59.44

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Solution

The fourth proportional to 221.74, 332.59 and 59.44 is: 89.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    221.74 : 332.59 = 59.44 : x
  2. Step 2: Convert to fraction form
    221.74/332.59 = 59.44/x
  3. Step 3: Cross multiply
    221.74x = 332.59 × 59.44
  4. Step 4: Simplify right side
    221.74x = 19,768.90
  5. Step 5: Solve for x
    x = 19,768.90/221.74
  6. Step 6: Final answer
    x = 89.15

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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.