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Finding the Fourth Proportional to 324,507.86, 447,529.95 and 270,239.70

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Solution

The fourth proportional to 324,507.86, 447,529.95 and 270,239.70 is: 372,688.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,507.86 : 447,529.95 = 270,239.70 : x
  2. Step 2: Convert to fraction form
    324,507.86/447,529.95 = 270,239.70/x
  3. Step 3: Cross multiply
    324,507.86x = 447,529.95 × 270,239.70
  4. Step 4: Simplify right side
    324,507.86x = 120,940,359,429.02
  5. Step 5: Solve for x
    x = 120,940,359,429.02/324,507.86
  6. Step 6: Final answer
    x = 372,688.54

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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.