Home / 276,572.20-381,676.86-155,717.92

Finding the Fourth Proportional to 276,572.20, 381,676.86 and 155,717.92

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Solution

The fourth proportional to 276,572.20, 381,676.86 and 155,717.92 is: 214,894.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,572.20 : 381,676.86 = 155,717.92 : x
  2. Step 2: Convert to fraction form
    276,572.20/381,676.86 = 155,717.92/x
  3. Step 3: Cross multiply
    276,572.20x = 381,676.86 × 155,717.92
  4. Step 4: Simplify right side
    276,572.20x = 59,433,926,751.33
  5. Step 5: Solve for x
    x = 59,433,926,751.33/276,572.20
  6. Step 6: Final answer
    x = 214,894.80

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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.