Home / 312,724.95-431,548.87-169,481.92

Finding the Fourth Proportional to 312,724.95, 431,548.87 and 169,481.92

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Solution

The fourth proportional to 312,724.95, 431,548.87 and 169,481.92 is: 233,878.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,724.95 : 431,548.87 = 169,481.92 : x
  2. Step 2: Convert to fraction form
    312,724.95/431,548.87 = 169,481.92/x
  3. Step 3: Cross multiply
    312,724.95x = 431,548.87 × 169,481.92
  4. Step 4: Simplify right side
    312,724.95x = 73,139,731,061.43
  5. Step 5: Solve for x
    x = 73,139,731,061.43/312,724.95
  6. Step 6: Final answer
    x = 233,878.78

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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.