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Finding the Fourth Proportional to 460.76, 636.15 and 355.66

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Solution

The fourth proportional to 460.76, 636.15 and 355.66 is: 491.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    460.76 : 636.15 = 355.66 : x
  2. Step 2: Convert to fraction form
    460.76/636.15 = 355.66/x
  3. Step 3: Cross multiply
    460.76x = 636.15 × 355.66
  4. Step 4: Simplify right side
    460.76x = 226,253.11
  5. Step 5: Solve for x
    x = 226,253.11/460.76
  6. Step 6: Final answer
    x = 491.04

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Find fourth proportional to 230.38, 318.08 and 177.83
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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.