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Finding the Fourth Proportional to 461.53, 636.96 and 344.89

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Solution

The fourth proportional to 461.53, 636.96 and 344.89 is: 475.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    461.53 : 636.96 = 344.89 : x
  2. Step 2: Convert to fraction form
    461.53/636.96 = 344.89/x
  3. Step 3: Cross multiply
    461.53x = 636.96 × 344.89
  4. Step 4: Simplify right side
    461.53x = 219,681.13
  5. Step 5: Solve for x
    x = 219,681.13/461.53
  6. Step 6: Final answer
    x = 475.98

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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.