Home / 276,844.20-415,266.30-89,855.70

Finding the Fourth Proportional to 276,844.20, 415,266.30 and 89,855.70

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Solution

The fourth proportional to 276,844.20, 415,266.30 and 89,855.70 is: 134,783.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,844.20 : 415,266.30 = 89,855.70 : x
  2. Step 2: Convert to fraction form
    276,844.20/415,266.30 = 89,855.70/x
  3. Step 3: Cross multiply
    276,844.20x = 415,266.30 × 89,855.70
  4. Step 4: Simplify right side
    276,844.20x = 37,314,044,072.91
  5. Step 5: Solve for x
    x = 37,314,044,072.91/276,844.20
  6. Step 6: Final answer
    x = 134,783.55

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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.