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Finding the Fourth Proportional to 248.68, 373.10 and 111.82

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Solution

The fourth proportional to 248.68, 373.10 and 111.82 is: 167.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    248.68 : 373.10 = 111.82 : x
  2. Step 2: Convert to fraction form
    248.68/373.10 = 111.82/x
  3. Step 3: Cross multiply
    248.68x = 373.10 × 111.82
  4. Step 4: Simplify right side
    248.68x = 41,719.28
  5. Step 5: Solve for x
    x = 41,719.28/248.68
  6. Step 6: Final answer
    x = 167.77

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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.