Home / 312,827.45-431,704.10-169,589.75

Finding the Fourth Proportional to 312,827.45, 431,704.10 and 169,589.75

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Solution

The fourth proportional to 312,827.45, 431,704.10 and 169,589.75 is: 234,035.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,827.45 : 431,704.10 = 169,589.75 : x
  2. Step 2: Convert to fraction form
    312,827.45/431,704.10 = 169,589.75/x
  3. Step 3: Cross multiply
    312,827.45x = 431,704.10 × 169,589.75
  4. Step 4: Simplify right side
    312,827.45x = 73,212,589,545.03
  5. Step 5: Solve for x
    x = 73,212,589,545.03/312,827.45
  6. Step 6: Final answer
    x = 234,035.06

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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.