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Finding the Fourth Proportional to 632.36, 948.47 and 170.12

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Solution

The fourth proportional to 632.36, 948.47 and 170.12 is: 255.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    632.36 : 948.47 = 170.12 : x
  2. Step 2: Convert to fraction form
    632.36/948.47 = 170.12/x
  3. Step 3: Cross multiply
    632.36x = 948.47 × 170.12
  4. Step 4: Simplify right side
    632.36x = 161,355.24
  5. Step 5: Solve for x
    x = 161,355.24/632.36
  6. Step 6: Final answer
    x = 255.16

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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.