Home / 254,515.20-381,918.60-96,856.80

Finding the Fourth Proportional to 254,515.20, 381,918.60 and 96,856.80

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Solution

The fourth proportional to 254,515.20, 381,918.60 and 96,856.80 is: 145,340.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,515.20 : 381,918.60 = 96,856.80 : x
  2. Step 2: Convert to fraction form
    254,515.20/381,918.60 = 96,856.80/x
  3. Step 3: Cross multiply
    254,515.20x = 381,918.60 × 96,856.80
  4. Step 4: Simplify right side
    254,515.20x = 36,991,413,456.48
  5. Step 5: Solve for x
    x = 36,991,413,456.48/254,515.20
  6. Step 6: Final answer
    x = 145,340.68

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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.