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Finding the Fourth Proportional to 180.43, 269.12 and 160.99

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Solution

The fourth proportional to 180.43, 269.12 and 160.99 is: 240.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    180.43 : 269.12 = 160.99 : x
  2. Step 2: Convert to fraction form
    180.43/269.12 = 160.99/x
  3. Step 3: Cross multiply
    180.43x = 269.12 × 160.99
  4. Step 4: Simplify right side
    180.43x = 43,325.36
  5. Step 5: Solve for x
    x = 43,325.36/180.43
  6. Step 6: Final answer
    x = 240.13

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.