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Finding the Fourth Proportional to 361,866.60, 499,366.80 and 200,725.20

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Solution

The fourth proportional to 361,866.60, 499,366.80 and 200,725.20 is: 276,995.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,866.60 : 499,366.80 = 200,725.20 : x
  2. Step 2: Convert to fraction form
    361,866.60/499,366.80 = 200,725.20/x
  3. Step 3: Cross multiply
    361,866.60x = 499,366.80 × 200,725.20
  4. Step 4: Simplify right side
    361,866.60x = 100,235,500,803.36
  5. Step 5: Solve for x
    x = 100,235,500,803.36/361,866.60
  6. Step 6: Final answer
    x = 276,995.72

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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.