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Finding the Fourth Proportional to 632.45, 948.67 and 170.23

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Solution

The fourth proportional to 632.45, 948.67 and 170.23 is: 255.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    632.45 : 948.67 = 170.23 : x
  2. Step 2: Convert to fraction form
    632.45/948.67 = 170.23/x
  3. Step 3: Cross multiply
    632.45x = 948.67 × 170.23
  4. Step 4: Simplify right side
    632.45x = 161,492.09
  5. Step 5: Solve for x
    x = 161,492.09/632.45
  6. Step 6: Final answer
    x = 255.34

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Double scale
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Similar ratio
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1.5x scale

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.