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Finding the Fourth Proportional to 636.66, 949.52 and 625.73

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Solution

The fourth proportional to 636.66, 949.52 and 625.73 is: 933.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    636.66 : 949.52 = 625.73 : x
  2. Step 2: Convert to fraction form
    636.66/949.52 = 625.73/x
  3. Step 3: Cross multiply
    636.66x = 949.52 × 625.73
  4. Step 4: Simplify right side
    636.66x = 594,139.97
  5. Step 5: Solve for x
    x = 594,139.97/636.66
  6. Step 6: Final answer
    x = 933.21

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.