Home / 290,471.27-400,887.94-163,146.86

Finding the Fourth Proportional to 290,471.27, 400,887.94 and 163,146.86

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Solution

The fourth proportional to 290,471.27, 400,887.94 and 163,146.86 is: 225,163.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,471.27 : 400,887.94 = 163,146.86 : x
  2. Step 2: Convert to fraction form
    290,471.27/400,887.94 = 163,146.86/x
  3. Step 3: Cross multiply
    290,471.27x = 400,887.94 × 163,146.86
  4. Step 4: Simplify right side
    290,471.27x = 65,403,608,622.87
  5. Step 5: Solve for x
    x = 65,403,608,622.87/290,471.27
  6. Step 6: Final answer
    x = 225,163.78

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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.