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Finding the Fourth Proportional to 337.57, 465.60 and 221.16

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Solution

The fourth proportional to 337.57, 465.60 and 221.16 is: 305.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    337.57 : 465.60 = 221.16 : x
  2. Step 2: Convert to fraction form
    337.57/465.60 = 221.16/x
  3. Step 3: Cross multiply
    337.57x = 465.60 × 221.16
  4. Step 4: Simplify right side
    337.57x = 102,972.10
  5. Step 5: Solve for x
    x = 102,972.10/337.57
  6. Step 6: Final answer
    x = 305.04

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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.