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Finding the Fourth Proportional to 460.85, 636.19 and 295.31

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Solution

The fourth proportional to 460.85, 636.19 and 295.31 is: 407.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    460.85 : 636.19 = 295.31 : x
  2. Step 2: Convert to fraction form
    460.85/636.19 = 295.31/x
  3. Step 3: Cross multiply
    460.85x = 636.19 × 295.31
  4. Step 4: Simplify right side
    460.85x = 187,869.35
  5. Step 5: Solve for x
    x = 187,869.35/460.85
  6. Step 6: Final answer
    x = 407.66

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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.