Home / 312,724.45-431,548.18-169,481.42

Finding the Fourth Proportional to 312,724.45, 431,548.18 and 169,481.42

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Solution

The fourth proportional to 312,724.45, 431,548.18 and 169,481.42 is: 233,878.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,724.45 : 431,548.18 = 169,481.42 : x
  2. Step 2: Convert to fraction form
    312,724.45/431,548.18 = 169,481.42/x
  3. Step 3: Cross multiply
    312,724.45x = 431,548.18 × 169,481.42
  4. Step 4: Simplify right side
    312,724.45x = 73,139,398,344.82
  5. Step 5: Solve for x
    x = 73,139,398,344.82/312,724.45
  6. Step 6: Final answer
    x = 233,878.09

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1.5x scale

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.