Home / 276,363.07-381,380.33-155,504.49

Finding the Fourth Proportional to 276,363.07, 381,380.33 and 155,504.49

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Solution

The fourth proportional to 276,363.07, 381,380.33 and 155,504.49 is: 214,595.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,363.07 : 381,380.33 = 155,504.49 : x
  2. Step 2: Convert to fraction form
    276,363.07/381,380.33 = 155,504.49/x
  3. Step 3: Cross multiply
    276,363.07x = 381,380.33 × 155,504.49
  4. Step 4: Simplify right side
    276,363.07x = 59,306,352,671.27
  5. Step 5: Solve for x
    x = 59,306,352,671.27/276,363.07
  6. Step 6: Final answer
    x = 214,595.80

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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.