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Finding the Fourth Proportional to 547,273.20, 820,909.80 and 192,323.10

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Solution

The fourth proportional to 547,273.20, 820,909.80 and 192,323.10 is: 288,484.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,273.20 : 820,909.80 = 192,323.10 : x
  2. Step 2: Convert to fraction form
    547,273.20/820,909.80 = 192,323.10/x
  3. Step 3: Cross multiply
    547,273.20x = 820,909.80 × 192,323.10
  4. Step 4: Simplify right side
    547,273.20x = 157,879,917,556.38
  5. Step 5: Solve for x
    x = 157,879,917,556.38/547,273.20
  6. Step 6: Final answer
    x = 288,484.65

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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.