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Finding the Fourth Proportional to 325.13, 448.71 and 269.11

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Solution

The fourth proportional to 325.13, 448.71 and 269.11 is: 371.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    325.13 : 448.71 = 269.11 : x
  2. Step 2: Convert to fraction form
    325.13/448.71 = 269.11/x
  3. Step 3: Cross multiply
    325.13x = 448.71 × 269.11
  4. Step 4: Simplify right side
    325.13x = 120,750.10
  5. Step 5: Solve for x
    x = 120,750.10/325.13
  6. Step 6: Final answer
    x = 371.39

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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.