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Finding the Fourth Proportional to 161.60, 223.44 and 141.11

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Solution

The fourth proportional to 161.60, 223.44 and 141.11 is: 195.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    161.60 : 223.44 = 141.11 : x
  2. Step 2: Convert to fraction form
    161.60/223.44 = 141.11/x
  3. Step 3: Cross multiply
    161.60x = 223.44 × 141.11
  4. Step 4: Simplify right side
    161.60x = 31,528.50
  5. Step 5: Solve for x
    x = 31,528.50/161.60
  6. Step 6: Final answer
    x = 195.10

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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.