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Finding the Fourth Proportional to 248.34, 372.45 and 104.16

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Solution

The fourth proportional to 248.34, 372.45 and 104.16 is: 156.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    248.34 : 372.45 = 104.16 : x
  2. Step 2: Convert to fraction form
    248.34/372.45 = 104.16/x
  3. Step 3: Cross multiply
    248.34x = 372.45 × 104.16
  4. Step 4: Simplify right side
    248.34x = 38,794.39
  5. Step 5: Solve for x
    x = 38,794.39/248.34
  6. Step 6: Final answer
    x = 156.21

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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.