Home / 290,086.45-400,326.20-162,771.46

Finding the Fourth Proportional to 290,086.45, 400,326.20 and 162,771.46

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Solution

The fourth proportional to 290,086.45, 400,326.20 and 162,771.46 is: 224,628.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,086.45 : 400,326.20 = 162,771.46 : x
  2. Step 2: Convert to fraction form
    290,086.45/400,326.20 = 162,771.46/x
  3. Step 3: Cross multiply
    290,086.45x = 400,326.20 × 162,771.46
  4. Step 4: Simplify right side
    290,086.45x = 65,161,681,555.60
  5. Step 5: Solve for x
    x = 65,161,681,555.60/290,086.45
  6. Step 6: Final answer
    x = 224,628.49

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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.