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Finding the Fourth Proportional to 324,389.04, 447,501.54 and 203,469.78

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Solution

The fourth proportional to 324,389.04, 447,501.54 and 203,469.78 is: 280,690.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,389.04 : 447,501.54 = 203,469.78 : x
  2. Step 2: Convert to fraction form
    324,389.04/447,501.54 = 203,469.78/x
  3. Step 3: Cross multiply
    324,389.04x = 447,501.54 × 203,469.78
  4. Step 4: Simplify right side
    324,389.04x = 91,053,039,893.46
  5. Step 5: Solve for x
    x = 91,053,039,893.46/324,389.04
  6. Step 6: Final answer
    x = 280,690.86

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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.