Home / 276,866.20-415,299.30-89,877.70

Finding the Fourth Proportional to 276,866.20, 415,299.30 and 89,877.70

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Solution

The fourth proportional to 276,866.20, 415,299.30 and 89,877.70 is: 134,816.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,866.20 : 415,299.30 = 89,877.70 : x
  2. Step 2: Convert to fraction form
    276,866.20/415,299.30 = 89,877.70/x
  3. Step 3: Cross multiply
    276,866.20x = 415,299.30 × 89,877.70
  4. Step 4: Simplify right side
    276,866.20x = 37,326,145,895.61
  5. Step 5: Solve for x
    x = 37,326,145,895.61/276,866.20
  6. Step 6: Final answer
    x = 134,816.55

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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.