Home / 321,519.28-482,386.97-225,556.51

Finding the Fourth Proportional to 321,519.28, 482,386.97 and 225,556.51

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Solution

The fourth proportional to 321,519.28, 482,386.97 and 225,556.51 is: 338,410.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,519.28 : 482,386.97 = 225,556.51 : x
  2. Step 2: Convert to fraction form
    321,519.28/482,386.97 = 225,556.51/x
  3. Step 3: Cross multiply
    321,519.28x = 482,386.97 × 225,556.51
  4. Step 4: Simplify right side
    321,519.28x = 108,805,520,294.89
  5. Step 5: Solve for x
    x = 108,805,520,294.89/321,519.28
  6. Step 6: Final answer
    x = 338,410.56

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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.