Home / 254,515.20-381,772.80-148,081.20

Finding the Fourth Proportional to 254,515.20, 381,772.80 and 148,081.20

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Solution

The fourth proportional to 254,515.20, 381,772.80 and 148,081.20 is: 222,121.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,515.20 : 381,772.80 = 148,081.20 : x
  2. Step 2: Convert to fraction form
    254,515.20/381,772.80 = 148,081.20/x
  3. Step 3: Cross multiply
    254,515.20x = 381,772.80 × 148,081.20
  4. Step 4: Simplify right side
    254,515.20x = 56,533,374,351.36
  5. Step 5: Solve for x
    x = 56,533,374,351.36/254,515.20
  6. Step 6: Final answer
    x = 222,121.80

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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.