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Finding the Fourth Proportional to 332.53, 458.73 and 221.86

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Solution

The fourth proportional to 332.53, 458.73 and 221.86 is: 306.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    332.53 : 458.73 = 221.86 : x
  2. Step 2: Convert to fraction form
    332.53/458.73 = 221.86/x
  3. Step 3: Cross multiply
    332.53x = 458.73 × 221.86
  4. Step 4: Simplify right side
    332.53x = 101,773.84
  5. Step 5: Solve for x
    x = 101,773.84/332.53
  6. Step 6: Final answer
    x = 306.06

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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.