Home / 378,154.29-521,846.22-206,073.79

Finding the Fourth Proportional to 378,154.29, 521,846.22 and 206,073.79

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Solution

The fourth proportional to 378,154.29, 521,846.22 and 206,073.79 is: 284,378.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,154.29 : 521,846.22 = 206,073.79 : x
  2. Step 2: Convert to fraction form
    378,154.29/521,846.22 = 206,073.79/x
  3. Step 3: Cross multiply
    378,154.29x = 521,846.22 × 206,073.79
  4. Step 4: Simplify right side
    378,154.29x = 107,538,828,352.57
  5. Step 5: Solve for x
    x = 107,538,828,352.57/378,154.29
  6. Step 6: Final answer
    x = 284,378.18

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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.