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Finding the Fourth Proportional to 175.83, 242.56 and 161.79

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Solution

The fourth proportional to 175.83, 242.56 and 161.79 is: 223.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    175.83 : 242.56 = 161.79 : x
  2. Step 2: Convert to fraction form
    175.83/242.56 = 161.79/x
  3. Step 3: Cross multiply
    175.83x = 242.56 × 161.79
  4. Step 4: Simplify right side
    175.83x = 39,243.78
  5. Step 5: Solve for x
    x = 39,243.78/175.83
  6. Step 6: Final answer
    x = 223.19

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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.