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Finding the Fourth Proportional to 149,899.80, 225,108.90 and 145,234.20

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Solution

The fourth proportional to 149,899.80, 225,108.90 and 145,234.20 is: 218,102.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,899.80 : 225,108.90 = 145,234.20 : x
  2. Step 2: Convert to fraction form
    149,899.80/225,108.90 = 145,234.20/x
  3. Step 3: Cross multiply
    149,899.80x = 225,108.90 × 145,234.20
  4. Step 4: Simplify right side
    149,899.80x = 32,693,511,004.38
  5. Step 5: Solve for x
    x = 32,693,511,004.38/149,899.80
  6. Step 6: Final answer
    x = 218,102.43

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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.