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Finding the Fourth Proportional to 176.09, 243.01 and 102.42

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Solution

The fourth proportional to 176.09, 243.01 and 102.42 is: 141.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    176.09 : 243.01 = 102.42 : x
  2. Step 2: Convert to fraction form
    176.09/243.01 = 102.42/x
  3. Step 3: Cross multiply
    176.09x = 243.01 × 102.42
  4. Step 4: Simplify right side
    176.09x = 24,888.30
  5. Step 5: Solve for x
    x = 24,888.30/176.09
  6. Step 6: Final answer
    x = 141.34

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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.