Home / 276,380.61-381,457.45-173,062.78

Finding the Fourth Proportional to 276,380.61, 381,457.45 and 173,062.78

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Solution

The fourth proportional to 276,380.61, 381,457.45 and 173,062.78 is: 238,859.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,380.61 : 381,457.45 = 173,062.78 : x
  2. Step 2: Convert to fraction form
    276,380.61/381,457.45 = 173,062.78/x
  3. Step 3: Cross multiply
    276,380.61x = 381,457.45 × 173,062.78
  4. Step 4: Simplify right side
    276,380.61x = 66,016,086,011.40
  5. Step 5: Solve for x
    x = 66,016,086,011.40/276,380.61
  6. Step 6: Final answer
    x = 238,859.33

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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.