Home / 254,711.20-381,159.60-221,792.80

Finding the Fourth Proportional to 254,711.20, 381,159.60 and 221,792.80

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Solution

The fourth proportional to 254,711.20, 381,159.60 and 221,792.80 is: 331,899.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,711.20 : 381,159.60 = 221,792.80 : x
  2. Step 2: Convert to fraction form
    254,711.20/381,159.60 = 221,792.80/x
  3. Step 3: Cross multiply
    254,711.20x = 381,159.60 × 221,792.80
  4. Step 4: Simplify right side
    254,711.20x = 84,538,454,930.88
  5. Step 5: Solve for x
    x = 84,538,454,930.88/254,711.20
  6. Step 6: Final answer
    x = 331,899.24

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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.