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Finding the Fourth Proportional to 632.95, 949.29 and 199.87

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Solution

The fourth proportional to 632.95, 949.29 and 199.87 is: 299.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    632.95 : 949.29 = 199.87 : x
  2. Step 2: Convert to fraction form
    632.95/949.29 = 199.87/x
  3. Step 3: Cross multiply
    632.95x = 949.29 × 199.87
  4. Step 4: Simplify right side
    632.95x = 189,734.59
  5. Step 5: Solve for x
    x = 189,734.59/632.95
  6. Step 6: Final answer
    x = 299.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.