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Finding the Fourth Proportional to 461.47, 636.86 and 265.00

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Solution

The fourth proportional to 461.47, 636.86 and 265.00 is: 365.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    461.47 : 636.86 = 265.00 : x
  2. Step 2: Convert to fraction form
    461.47/636.86 = 265.00/x
  3. Step 3: Cross multiply
    461.47x = 636.86 × 265.00
  4. Step 4: Simplify right side
    461.47x = 168,766.37
  5. Step 5: Solve for x
    x = 168,766.37/461.47
  6. Step 6: Final answer
    x = 365.71

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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.