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Finding the Fourth Proportional to 632.15, 948.14 and 199.25

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Solution

The fourth proportional to 632.15, 948.14 and 199.25 is: 298.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    632.15 : 948.14 = 199.25 : x
  2. Step 2: Convert to fraction form
    632.15/948.14 = 199.25/x
  3. Step 3: Cross multiply
    632.15x = 948.14 × 199.25
  4. Step 4: Simplify right side
    632.15x = 188,915.90
  5. Step 5: Solve for x
    x = 188,915.90/632.15
  6. Step 6: Final answer
    x = 298.85

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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.