Home / 312,723.45-431,546.81-169,480.42

Finding the Fourth Proportional to 312,723.45, 431,546.81 and 169,480.42

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Solution

The fourth proportional to 312,723.45, 431,546.81 and 169,480.42 is: 233,876.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,723.45 : 431,546.81 = 169,480.42 : x
  2. Step 2: Convert to fraction form
    312,723.45/431,546.81 = 169,480.42/x
  3. Step 3: Cross multiply
    312,723.45x = 431,546.81 × 169,480.42
  4. Step 4: Simplify right side
    312,723.45x = 73,138,732,682.19
  5. Step 5: Solve for x
    x = 73,138,732,682.19/312,723.45
  6. Step 6: Final answer
    x = 233,876.71

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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.