Home / 255,058.20-381,680.10-222,139.80

Finding the Fourth Proportional to 255,058.20, 381,680.10 and 222,139.80

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Solution

The fourth proportional to 255,058.20, 381,680.10 and 222,139.80 is: 332,419.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,058.20 : 381,680.10 = 222,139.80 : x
  2. Step 2: Convert to fraction form
    255,058.20/381,680.10 = 222,139.80/x
  3. Step 3: Cross multiply
    255,058.20x = 381,680.10 × 222,139.80
  4. Step 4: Simplify right side
    255,058.20x = 84,786,341,077.98
  5. Step 5: Solve for x
    x = 84,786,341,077.98/255,058.20
  6. Step 6: Final answer
    x = 332,419.59

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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.