Home / 398,713.56-597,921.30-161,976.48

Finding the Fourth Proportional to 398,713.56, 597,921.30 and 161,976.48

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Solution

The fourth proportional to 398,713.56, 597,921.30 and 161,976.48 is: 242,904.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,713.56 : 597,921.30 = 161,976.48 : x
  2. Step 2: Convert to fraction form
    398,713.56/597,921.30 = 161,976.48/x
  3. Step 3: Cross multiply
    398,713.56x = 597,921.30 × 161,976.48
  4. Step 4: Simplify right side
    398,713.56x = 96,849,187,491.02
  5. Step 5: Solve for x
    x = 96,849,187,491.02/398,713.56
  6. Step 6: Final answer
    x = 242,904.17

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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.