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Finding the Fourth Proportional to 399,299.28, 598,947.84 and 162,586.32

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Solution

The fourth proportional to 399,299.28, 598,947.84 and 162,586.32 is: 243,879.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,299.28 : 598,947.84 = 162,586.32 : x
  2. Step 2: Convert to fraction form
    399,299.28/598,947.84 = 162,586.32/x
  3. Step 3: Cross multiply
    399,299.28x = 598,947.84 × 162,586.32
  4. Step 4: Simplify right side
    399,299.28x = 97,380,725,177.55
  5. Step 5: Solve for x
    x = 97,380,725,177.55/399,299.28
  6. Step 6: Final answer
    x = 243,879.04

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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.