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Finding the Fourth Proportional to 325.42, 448.50 and 269.86

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Solution

The fourth proportional to 325.42, 448.50 and 269.86 is: 371.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    325.42 : 448.50 = 269.86 : x
  2. Step 2: Convert to fraction form
    325.42/448.50 = 269.86/x
  3. Step 3: Cross multiply
    325.42x = 448.50 × 269.86
  4. Step 4: Simplify right side
    325.42x = 121,032.21
  5. Step 5: Solve for x
    x = 121,032.21/325.42
  6. Step 6: Final answer
    x = 371.93

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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.