Home / 304,399.11-420,042.17-206,082.36

Finding the Fourth Proportional to 304,399.11, 420,042.17 and 206,082.36

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Solution

The fourth proportional to 304,399.11, 420,042.17 and 206,082.36 is: 284,374.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,399.11 : 420,042.17 = 206,082.36 : x
  2. Step 2: Convert to fraction form
    304,399.11/420,042.17 = 206,082.36/x
  3. Step 3: Cross multiply
    304,399.11x = 420,042.17 × 206,082.36
  4. Step 4: Simplify right side
    304,399.11x = 86,563,280,452.89
  5. Step 5: Solve for x
    x = 86,563,280,452.89/304,399.11
  6. Step 6: Final answer
    x = 284,374.29

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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.