Home / 382,508.20-527,824.38-221,331.16

Finding the Fourth Proportional to 382,508.20, 527,824.38 and 221,331.16

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Solution

The fourth proportional to 382,508.20, 527,824.38 and 221,331.16 is: 305,415.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,508.20 : 527,824.38 = 221,331.16 : x
  2. Step 2: Convert to fraction form
    382,508.20/527,824.38 = 221,331.16/x
  3. Step 3: Cross multiply
    382,508.20x = 527,824.38 × 221,331.16
  4. Step 4: Simplify right side
    382,508.20x = 116,823,982,301.68
  5. Step 5: Solve for x
    x = 116,823,982,301.68/382,508.20
  6. Step 6: Final answer
    x = 305,415.63

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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.