Home / 276,217.06-381,175.77-155,358.31

Finding the Fourth Proportional to 276,217.06, 381,175.77 and 155,358.31

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Solution

The fourth proportional to 276,217.06, 381,175.77 and 155,358.31 is: 214,392.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,217.06 : 381,175.77 = 155,358.31 : x
  2. Step 2: Convert to fraction form
    276,217.06/381,175.77 = 155,358.31/x
  3. Step 3: Cross multiply
    276,217.06x = 381,175.77 × 155,358.31
  4. Step 4: Simplify right side
    276,217.06x = 59,218,823,440.15
  5. Step 5: Solve for x
    x = 59,218,823,440.15/276,217.06
  6. Step 6: Final answer
    x = 214,392.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.