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Finding the Fourth Proportional to 500,576.43, 750,856.69 and 121,500.30

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Solution

The fourth proportional to 500,576.43, 750,856.69 and 121,500.30 is: 182,248.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,576.43 : 750,856.69 = 121,500.30 : x
  2. Step 2: Convert to fraction form
    500,576.43/750,856.69 = 121,500.30/x
  3. Step 3: Cross multiply
    500,576.43x = 750,856.69 × 121,500.30
  4. Step 4: Simplify right side
    500,576.43x = 91,229,313,092.01
  5. Step 5: Solve for x
    x = 91,229,313,092.01/500,576.43
  6. Step 6: Final answer
    x = 182,248.52

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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.