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Finding the Fourth Proportional to 177.80, 244.98 and 143.24

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Solution

The fourth proportional to 177.80, 244.98 and 143.24 is: 197.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    177.80 : 244.98 = 143.24 : x
  2. Step 2: Convert to fraction form
    177.80/244.98 = 143.24/x
  3. Step 3: Cross multiply
    177.80x = 244.98 × 143.24
  4. Step 4: Simplify right side
    177.80x = 35,090.94
  5. Step 5: Solve for x
    x = 35,090.94/177.80
  6. Step 6: Final answer
    x = 197.36

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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.