Home / 254,743.20-381,207.60-221,824.80

Finding the Fourth Proportional to 254,743.20, 381,207.60 and 221,824.80

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Solution

The fourth proportional to 254,743.20, 381,207.60 and 221,824.80 is: 331,947.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,743.20 : 381,207.60 = 221,824.80 : x
  2. Step 2: Convert to fraction form
    254,743.20/381,207.60 = 221,824.80/x
  3. Step 3: Cross multiply
    254,743.20x = 381,207.60 × 221,824.80
  4. Step 4: Simplify right side
    254,743.20x = 84,561,299,628.48
  5. Step 5: Solve for x
    x = 84,561,299,628.48/254,743.20
  6. Step 6: Final answer
    x = 331,947.23

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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.