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Finding the Fourth Proportional to 337.63, 506.45 and 145.25

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Solution

The fourth proportional to 337.63, 506.45 and 145.25 is: 217.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    337.63 : 506.45 = 145.25 : x
  2. Step 2: Convert to fraction form
    337.63/506.45 = 145.25/x
  3. Step 3: Cross multiply
    337.63x = 506.45 × 145.25
  4. Step 4: Simplify right side
    337.63x = 73,561.86
  5. Step 5: Solve for x
    x = 73,561.86/337.63
  6. Step 6: Final answer
    x = 217.88

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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.