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Finding the Fourth Proportional to 337.96, 466.17 and 221.53

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Solution

The fourth proportional to 337.96, 466.17 and 221.53 is: 305.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    337.96 : 466.17 = 221.53 : x
  2. Step 2: Convert to fraction form
    337.96/466.17 = 221.53/x
  3. Step 3: Cross multiply
    337.96x = 466.17 × 221.53
  4. Step 4: Simplify right side
    337.96x = 103,270.64
  5. Step 5: Solve for x
    x = 103,270.64/337.96
  6. Step 6: Final answer
    x = 305.57

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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.