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Finding the Fourth Proportional to 324,508.13, 447,530.32 and 270,240

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Solution

The fourth proportional to 324,508.13, 447,530.32 and 270,240 is: 372,688.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,508.13 : 447,530.32 = 270,240 : x
  2. Step 2: Convert to fraction form
    324,508.13/447,530.32 = 270,240/x
  3. Step 3: Cross multiply
    324,508.13x = 447,530.32 × 270,240
  4. Step 4: Simplify right side
    324,508.13x = 120,940,593,001.20
  5. Step 5: Solve for x
    x = 120,940,593,001.20/324,508.13
  6. Step 6: Final answer
    x = 372,688.95

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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.