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Finding the Fourth Proportional to 347,793.62, 521,673.08 and 203,780.88

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Solution

The fourth proportional to 347,793.62, 521,673.08 and 203,780.88 is: 305,661.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,793.62 : 521,673.08 = 203,780.88 : x
  2. Step 2: Convert to fraction form
    347,793.62/521,673.08 = 203,780.88/x
  3. Step 3: Cross multiply
    347,793.62x = 521,673.08 × 203,780.88
  4. Step 4: Simplify right side
    347,793.62x = 106,306,998,295.81
  5. Step 5: Solve for x
    x = 106,306,998,295.81/347,793.62
  6. Step 6: Final answer
    x = 305,661.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.