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Finding the Fourth Proportional to 248.16, 372.28 and 118.10

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Solution

The fourth proportional to 248.16, 372.28 and 118.10 is: 177.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    248.16 : 372.28 = 118.10 : x
  2. Step 2: Convert to fraction form
    248.16/372.28 = 118.10/x
  3. Step 3: Cross multiply
    248.16x = 372.28 × 118.10
  4. Step 4: Simplify right side
    248.16x = 43,966.27
  5. Step 5: Solve for x
    x = 43,966.27/248.16
  6. Step 6: Final answer
    x = 177.17

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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.