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Finding the Fourth Proportional to 177.05, 244.19 and 103.34

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Solution

The fourth proportional to 177.05, 244.19 and 103.34 is: 142.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    177.05 : 244.19 = 103.34 : x
  2. Step 2: Convert to fraction form
    177.05/244.19 = 103.34/x
  3. Step 3: Cross multiply
    177.05x = 244.19 × 103.34
  4. Step 4: Simplify right side
    177.05x = 25,235.46
  5. Step 5: Solve for x
    x = 25,235.46/177.05
  6. Step 6: Final answer
    x = 142.53

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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.