Home / 276,823.35-415,087.38-143,372.61

Finding the Fourth Proportional to 276,823.35, 415,087.38 and 143,372.61

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Solution

The fourth proportional to 276,823.35, 415,087.38 and 143,372.61 is: 214,982.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,823.35 : 415,087.38 = 143,372.61 : x
  2. Step 2: Convert to fraction form
    276,823.35/415,087.38 = 143,372.61/x
  3. Step 3: Cross multiply
    276,823.35x = 415,087.38 × 143,372.61
  4. Step 4: Simplify right side
    276,823.35x = 59,512,161,048.66
  5. Step 5: Solve for x
    x = 59,512,161,048.66/276,823.35
  6. Step 6: Final answer
    x = 214,982.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.