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Finding the Fourth Proportional to 618,429.44, 927,672.10 and 169,140.26

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Solution

The fourth proportional to 618,429.44, 927,672.10 and 169,140.26 is: 253,718.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,429.44 : 927,672.10 = 169,140.26 : x
  2. Step 2: Convert to fraction form
    618,429.44/927,672.10 = 169,140.26/x
  3. Step 3: Cross multiply
    618,429.44x = 927,672.10 × 169,140.26
  4. Step 4: Simplify right side
    618,429.44x = 156,906,700,188.75
  5. Step 5: Solve for x
    x = 156,906,700,188.75/618,429.44
  6. Step 6: Final answer
    x = 253,718.03

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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.