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Finding the Fourth Proportional to 272,336.80, 408,505.20 and 183,863.20

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Solution

The fourth proportional to 272,336.80, 408,505.20 and 183,863.20 is: 275,794.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,336.80 : 408,505.20 = 183,863.20 : x
  2. Step 2: Convert to fraction form
    272,336.80/408,505.20 = 183,863.20/x
  3. Step 3: Cross multiply
    272,336.80x = 408,505.20 × 183,863.20
  4. Step 4: Simplify right side
    272,336.80x = 75,109,073,288.64
  5. Step 5: Solve for x
    x = 75,109,073,288.64/272,336.80
  6. Step 6: Final answer
    x = 275,794.80

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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.