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Finding the Fourth Proportional to 269.10, 401.38 and 245.52

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Solution

The fourth proportional to 269.10, 401.38 and 245.52 is: 366.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    269.10 : 401.38 = 245.52 : x
  2. Step 2: Convert to fraction form
    269.10/401.38 = 245.52/x
  3. Step 3: Cross multiply
    269.10x = 401.38 × 245.52
  4. Step 4: Simplify right side
    269.10x = 98,546.20
  5. Step 5: Solve for x
    x = 98,546.20/269.10
  6. Step 6: Final answer
    x = 366.21

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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.