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Finding the Fourth Proportional to 248.04, 341.56 and 212.80

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Solution

The fourth proportional to 248.04, 341.56 and 212.80 is: 293.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    248.04 : 341.56 = 212.80 : x
  2. Step 2: Convert to fraction form
    248.04/341.56 = 212.80/x
  3. Step 3: Cross multiply
    248.04x = 341.56 × 212.80
  4. Step 4: Simplify right side
    248.04x = 72,683.97
  5. Step 5: Solve for x
    x = 72,683.97/248.04
  6. Step 6: Final answer
    x = 293.03

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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.