Home / 254,143.24-381,217.60-76,651.79

Finding the Fourth Proportional to 254,143.24, 381,217.60 and 76,651.79

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Solution

The fourth proportional to 254,143.24, 381,217.60 and 76,651.79 is: 114,978.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,143.24 : 381,217.60 = 76,651.79 : x
  2. Step 2: Convert to fraction form
    254,143.24/381,217.60 = 76,651.79/x
  3. Step 3: Cross multiply
    254,143.24x = 381,217.60 × 76,651.79
  4. Step 4: Simplify right side
    254,143.24x = 29,221,011,038.80
  5. Step 5: Solve for x
    x = 29,221,011,038.80/254,143.24
  6. Step 6: Final answer
    x = 114,978.51

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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.