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Finding the Fourth Proportional to 161.30, 242.49 and 160.49

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Solution

The fourth proportional to 161.30, 242.49 and 160.49 is: 241.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    161.30 : 242.49 = 160.49 : x
  2. Step 2: Convert to fraction form
    161.30/242.49 = 160.49/x
  3. Step 3: Cross multiply
    161.30x = 242.49 × 160.49
  4. Step 4: Simplify right side
    161.30x = 38,917.22
  5. Step 5: Solve for x
    x = 38,917.22/161.30
  6. Step 6: Final answer
    x = 241.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.