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Finding the Fourth Proportional to 248.60, 372.13 and 157.16

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Solution

The fourth proportional to 248.60, 372.13 and 157.16 is: 235.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    248.60 : 372.13 = 157.16 : x
  2. Step 2: Convert to fraction form
    248.60/372.13 = 157.16/x
  3. Step 3: Cross multiply
    248.60x = 372.13 × 157.16
  4. Step 4: Simplify right side
    248.60x = 58,484.49
  5. Step 5: Solve for x
    x = 58,484.49/248.60
  6. Step 6: Final answer
    x = 235.25

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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.