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Finding the Fourth Proportional to 634.81, 952.25 and 172.59

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Solution

The fourth proportional to 634.81, 952.25 and 172.59 is: 258.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    634.81 : 952.25 = 172.59 : x
  2. Step 2: Convert to fraction form
    634.81/952.25 = 172.59/x
  3. Step 3: Cross multiply
    634.81x = 952.25 × 172.59
  4. Step 4: Simplify right side
    634.81x = 164,348.83
  5. Step 5: Solve for x
    x = 164,348.83/634.81
  6. Step 6: Final answer
    x = 258.89

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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.