Home / 304,400.11-420,043.55-206,083.36

Finding the Fourth Proportional to 304,400.11, 420,043.55 and 206,083.36

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Solution

The fourth proportional to 304,400.11, 420,043.55 and 206,083.36 is: 284,375.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,400.11 : 420,043.55 = 206,083.36 : x
  2. Step 2: Convert to fraction form
    304,400.11/420,043.55 = 206,083.36/x
  3. Step 3: Cross multiply
    304,400.11x = 420,043.55 × 206,083.36
  4. Step 4: Simplify right side
    304,400.11x = 86,563,986,130.33
  5. Step 5: Solve for x
    x = 86,563,986,130.33/304,400.11
  6. Step 6: Final answer
    x = 284,375.67

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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.