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Finding the Fourth Proportional to 460.79, 636.02 and 271.91

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Solution

The fourth proportional to 460.79, 636.02 and 271.91 is: 375.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    460.79 : 636.02 = 271.91 : x
  2. Step 2: Convert to fraction form
    460.79/636.02 = 271.91/x
  3. Step 3: Cross multiply
    460.79x = 636.02 × 271.91
  4. Step 4: Simplify right side
    460.79x = 172,935.66
  5. Step 5: Solve for x
    x = 172,935.66/460.79
  6. Step 6: Final answer
    x = 375.31

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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.