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Finding the Fourth Proportional to 100,270.70, 150,489.11 and 50,365.05

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Solution

The fourth proportional to 100,270.70, 150,489.11 and 50,365.05 is: 75,589.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,270.70 : 150,489.11 = 50,365.05 : x
  2. Step 2: Convert to fraction form
    100,270.70/150,489.11 = 50,365.05/x
  3. Step 3: Cross multiply
    100,270.70x = 150,489.11 × 50,365.05
  4. Step 4: Simplify right side
    100,270.70x = 7,579,391,549.61
  5. Step 5: Solve for x
    x = 7,579,391,549.61/100,270.70
  6. Step 6: Final answer
    x = 75,589.30

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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.