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Finding the Fourth Proportional to 248.88, 343.62 and 236.76

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Solution

The fourth proportional to 248.88, 343.62 and 236.76 is: 326.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    248.88 : 343.62 = 236.76 : x
  2. Step 2: Convert to fraction form
    248.88/343.62 = 236.76/x
  3. Step 3: Cross multiply
    248.88x = 343.62 × 236.76
  4. Step 4: Simplify right side
    248.88x = 81,355.47
  5. Step 5: Solve for x
    x = 81,355.47/248.88
  6. Step 6: Final answer
    x = 326.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.