Home / 398,921.16-597,882.70-199,297.16

Finding the Fourth Proportional to 398,921.16, 597,882.70 and 199,297.16

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Solution

The fourth proportional to 398,921.16, 597,882.70 and 199,297.16 is: 298,696.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,921.16 : 597,882.70 = 199,297.16 : x
  2. Step 2: Convert to fraction form
    398,921.16/597,882.70 = 199,297.16/x
  3. Step 3: Cross multiply
    398,921.16x = 597,882.70 × 199,297.16
  4. Step 4: Simplify right side
    398,921.16x = 119,156,324,123.13
  5. Step 5: Solve for x
    x = 119,156,324,123.13/398,921.16
  6. Step 6: Final answer
    x = 298,696.42

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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.