Home / 290,056.20-400,301.66-161,006.79

Finding the Fourth Proportional to 290,056.20, 400,301.66 and 161,006.79

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Solution

The fourth proportional to 290,056.20, 400,301.66 and 161,006.79 is: 222,202.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,056.20 : 400,301.66 = 161,006.79 : x
  2. Step 2: Convert to fraction form
    290,056.20/400,301.66 = 161,006.79/x
  3. Step 3: Cross multiply
    290,056.20x = 400,301.66 × 161,006.79
  4. Step 4: Simplify right side
    290,056.20x = 64,451,287,211.92
  5. Step 5: Solve for x
    x = 64,451,287,211.92/290,056.20
  6. Step 6: Final answer
    x = 222,202.76

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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.