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Finding the Fourth Proportional to 632.81, 949.21 and 164.29

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Solution

The fourth proportional to 632.81, 949.21 and 164.29 is: 246.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    632.81 : 949.21 = 164.29 : x
  2. Step 2: Convert to fraction form
    632.81/949.21 = 164.29/x
  3. Step 3: Cross multiply
    632.81x = 949.21 × 164.29
  4. Step 4: Simplify right side
    632.81x = 155,945.71
  5. Step 5: Solve for x
    x = 155,945.71/632.81
  6. Step 6: Final answer
    x = 246.43

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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.