Home / 276,540.18-381,625.68-155,682.36

Finding the Fourth Proportional to 276,540.18, 381,625.68 and 155,682.36

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Solution

The fourth proportional to 276,540.18, 381,625.68 and 155,682.36 is: 214,841.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,540.18 : 381,625.68 = 155,682.36 : x
  2. Step 2: Convert to fraction form
    276,540.18/381,625.68 = 155,682.36/x
  3. Step 3: Cross multiply
    276,540.18x = 381,625.68 × 155,682.36
  4. Step 4: Simplify right side
    276,540.18x = 59,412,386,499.00
  5. Step 5: Solve for x
    x = 59,412,386,499.00/276,540.18
  6. Step 6: Final answer
    x = 214,841.79

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1.5x scale

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.