Home / 276,711.29-415,067.04-213,623.51

Finding the Fourth Proportional to 276,711.29, 415,067.04 and 213,623.51

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Solution

The fourth proportional to 276,711.29, 415,067.04 and 213,623.51 is: 320,435.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,711.29 : 415,067.04 = 213,623.51 : x
  2. Step 2: Convert to fraction form
    276,711.29/415,067.04 = 213,623.51/x
  3. Step 3: Cross multiply
    276,711.29x = 415,067.04 × 213,623.51
  4. Step 4: Simplify right side
    276,711.29x = 88,668,079,007.78
  5. Step 5: Solve for x
    x = 88,668,079,007.78/276,711.29
  6. Step 6: Final answer
    x = 320,435.36

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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.