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Finding the Fourth Proportional to 248.96, 372.32 and 167.68

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Solution

The fourth proportional to 248.96, 372.32 and 167.68 is: 250.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    248.96 : 372.32 = 167.68 : x
  2. Step 2: Convert to fraction form
    248.96/372.32 = 167.68/x
  3. Step 3: Cross multiply
    248.96x = 372.32 × 167.68
  4. Step 4: Simplify right side
    248.96x = 62,430.62
  5. Step 5: Solve for x
    x = 62,430.62/248.96
  6. Step 6: Final answer
    x = 250.77

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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.