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Finding the Fourth Proportional to 250,340.28, 375,533.51 and 81,861.47

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Solution

The fourth proportional to 250,340.28, 375,533.51 and 81,861.47 is: 122,799.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,340.28 : 375,533.51 = 81,861.47 : x
  2. Step 2: Convert to fraction form
    250,340.28/375,533.51 = 81,861.47/x
  3. Step 3: Cross multiply
    250,340.28x = 375,533.51 × 81,861.47
  4. Step 4: Simplify right side
    250,340.28x = 30,741,725,162.86
  5. Step 5: Solve for x
    x = 30,741,725,162.86/250,340.28
  6. Step 6: Final answer
    x = 122,799.76

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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.