Home / 276,823.20-415,234.80-89,853.60

Finding the Fourth Proportional to 276,823.20, 415,234.80 and 89,853.60

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Solution

The fourth proportional to 276,823.20, 415,234.80 and 89,853.60 is: 134,780.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,823.20 : 415,234.80 = 89,853.60 : x
  2. Step 2: Convert to fraction form
    276,823.20/415,234.80 = 89,853.60/x
  3. Step 3: Cross multiply
    276,823.20x = 415,234.80 × 89,853.60
  4. Step 4: Simplify right side
    276,823.20x = 37,310,341,625.28
  5. Step 5: Solve for x
    x = 37,310,341,625.28/276,823.20
  6. Step 6: Final answer
    x = 134,780.40

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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.