Home / 221,945.46-306,287.79-131,299.10

Finding the Fourth Proportional to 221,945.46, 306,287.79 and 131,299.10

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Solution

The fourth proportional to 221,945.46, 306,287.79 and 131,299.10 is: 181,194.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,945.46 : 306,287.79 = 131,299.10 : x
  2. Step 2: Convert to fraction form
    221,945.46/306,287.79 = 131,299.10/x
  3. Step 3: Cross multiply
    221,945.46x = 306,287.79 × 131,299.10
  4. Step 4: Simplify right side
    221,945.46x = 40,215,309,636.55
  5. Step 5: Solve for x
    x = 40,215,309,636.55/221,945.46
  6. Step 6: Final answer
    x = 181,194.56

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1.5x scale

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.