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Finding the Fourth Proportional to 181,651.50, 250,769.87 and 140,724.56

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Solution

The fourth proportional to 181,651.50, 250,769.87 and 140,724.56 is: 194,270.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,651.50 : 250,769.87 = 140,724.56 : x
  2. Step 2: Convert to fraction form
    181,651.50/250,769.87 = 140,724.56/x
  3. Step 3: Cross multiply
    181,651.50x = 250,769.87 × 140,724.56
  4. Step 4: Simplify right side
    181,651.50x = 35,289,478,363.16
  5. Step 5: Solve for x
    x = 35,289,478,363.16/181,651.50
  6. Step 6: Final answer
    x = 194,270.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.