Home / 300,094.20-449,987.40-89,704.80

Finding the Fourth Proportional to 300,094.20, 449,987.40 and 89,704.80

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Solution

The fourth proportional to 300,094.20, 449,987.40 and 89,704.80 is: 134,511.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,094.20 : 449,987.40 = 89,704.80 : x
  2. Step 2: Convert to fraction form
    300,094.20/449,987.40 = 89,704.80/x
  3. Step 3: Cross multiply
    300,094.20x = 449,987.40 × 89,704.80
  4. Step 4: Simplify right side
    300,094.20x = 40,366,029,719.52
  5. Step 5: Solve for x
    x = 40,366,029,719.52/300,094.20
  6. Step 6: Final answer
    x = 134,511.20

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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.