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Finding the Fourth Proportional to 324.63, 448.02 and 268.61

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Solution

The fourth proportional to 324.63, 448.02 and 268.61 is: 370.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    324.63 : 448.02 = 268.61 : x
  2. Step 2: Convert to fraction form
    324.63/448.02 = 268.61/x
  3. Step 3: Cross multiply
    324.63x = 448.02 × 268.61
  4. Step 4: Simplify right side
    324.63x = 120,340.41
  5. Step 5: Solve for x
    x = 120,340.41/324.63
  6. Step 6: Final answer
    x = 370.70

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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.