Home / 254,117.79-381,179.64-76,626.33

Finding the Fourth Proportional to 254,117.79, 381,179.64 and 76,626.33

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Solution

The fourth proportional to 254,117.79, 381,179.64 and 76,626.33 is: 114,940.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,117.79 : 381,179.64 = 76,626.33 : x
  2. Step 2: Convert to fraction form
    254,117.79/381,179.64 = 76,626.33/x
  3. Step 3: Cross multiply
    254,117.79x = 381,179.64 × 76,626.33
  4. Step 4: Simplify right side
    254,117.79x = 29,208,396,883.92
  5. Step 5: Solve for x
    x = 29,208,396,883.92/254,117.79
  6. Step 6: Final answer
    x = 114,940.39

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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.