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Finding the Fourth Proportional to 300,132.80, 449,594.40 and 187,467.20

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Solution

The fourth proportional to 300,132.80, 449,594.40 and 187,467.20 is: 280,823.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,132.80 : 449,594.40 = 187,467.20 : x
  2. Step 2: Convert to fraction form
    300,132.80/449,594.40 = 187,467.20/x
  3. Step 3: Cross multiply
    300,132.80x = 449,594.40 × 187,467.20
  4. Step 4: Simplify right side
    300,132.80x = 84,284,203,303.68
  5. Step 5: Solve for x
    x = 84,284,203,303.68/300,132.80
  6. Step 6: Final answer
    x = 280,823.03

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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.