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Finding the Fourth Proportional to 300,019.20, 449,899.20 and 150,201.60

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Solution

The fourth proportional to 300,019.20, 449,899.20 and 150,201.60 is: 225,237.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,019.20 : 449,899.20 = 150,201.60 : x
  2. Step 2: Convert to fraction form
    300,019.20/449,899.20 = 150,201.60/x
  3. Step 3: Cross multiply
    300,019.20x = 449,899.20 × 150,201.60
  4. Step 4: Simplify right side
    300,019.20x = 67,575,579,678.72
  5. Step 5: Solve for x
    x = 67,575,579,678.72/300,019.20
  6. Step 6: Final answer
    x = 225,237.52

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1.5x scale

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.