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Finding the Fourth Proportional to 324,703.80, 447,801.12 and 203,856.35

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Solution

The fourth proportional to 324,703.80, 447,801.12 and 203,856.35 is: 281,139.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,703.80 : 447,801.12 = 203,856.35 : x
  2. Step 2: Convert to fraction form
    324,703.80/447,801.12 = 203,856.35/x
  3. Step 3: Cross multiply
    324,703.80x = 447,801.12 × 203,856.35
  4. Step 4: Simplify right side
    324,703.80x = 91,287,099,610.11
  5. Step 5: Solve for x
    x = 91,287,099,610.11/324,703.80
  6. Step 6: Final answer
    x = 281,139.61

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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.