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Finding the Fourth Proportional to 248.70, 372.80 and 167.57

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Solution

The fourth proportional to 248.70, 372.80 and 167.57 is: 251.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    248.70 : 372.80 = 167.57 : x
  2. Step 2: Convert to fraction form
    248.70/372.80 = 167.57/x
  3. Step 3: Cross multiply
    248.70x = 372.80 × 167.57
  4. Step 4: Simplify right side
    248.70x = 62,467.39
  5. Step 5: Solve for x
    x = 62,467.39/248.70
  6. Step 6: Final answer
    x = 251.18

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.