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Finding the Fourth Proportional to 237.53, 354.54 and 220.16

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Solution

The fourth proportional to 237.53, 354.54 and 220.16 is: 328.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    237.53 : 354.54 = 220.16 : x
  2. Step 2: Convert to fraction form
    237.53/354.54 = 220.16/x
  3. Step 3: Cross multiply
    237.53x = 354.54 × 220.16
  4. Step 4: Simplify right side
    237.53x = 78,053.75
  5. Step 5: Solve for x
    x = 78,053.75/237.53
  6. Step 6: Final answer
    x = 328.61

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.