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Finding the Fourth Proportional to 416.88, 624.97 and 173.57

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Solution

The fourth proportional to 416.88, 624.97 and 173.57 is: 260.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    416.88 : 624.97 = 173.57 : x
  2. Step 2: Convert to fraction form
    416.88/624.97 = 173.57/x
  3. Step 3: Cross multiply
    416.88x = 624.97 × 173.57
  4. Step 4: Simplify right side
    416.88x = 108,476.04
  5. Step 5: Solve for x
    x = 108,476.04/416.88
  6. Step 6: Final answer
    x = 260.21

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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.