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Finding the Fourth Proportional to 632.57, 948.97 and 193.81

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Solution

The fourth proportional to 632.57, 948.97 and 193.81 is: 290.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    632.57 : 948.97 = 193.81 : x
  2. Step 2: Convert to fraction form
    632.57/948.97 = 193.81/x
  3. Step 3: Cross multiply
    632.57x = 948.97 × 193.81
  4. Step 4: Simplify right side
    632.57x = 183,920.74
  5. Step 5: Solve for x
    x = 183,920.74/632.57
  6. Step 6: Final answer
    x = 290.75

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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.