Home / 290,104.11-400,211.82-188,155.26

Finding the Fourth Proportional to 290,104.11, 400,211.82 and 188,155.26

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Solution

The fourth proportional to 290,104.11, 400,211.82 and 188,155.26 is: 259,568.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,104.11 : 400,211.82 = 188,155.26 : x
  2. Step 2: Convert to fraction form
    290,104.11/400,211.82 = 188,155.26/x
  3. Step 3: Cross multiply
    290,104.11x = 400,211.82 × 188,155.26
  4. Step 4: Simplify right side
    290,104.11x = 75,301,959,047.17
  5. Step 5: Solve for x
    x = 75,301,959,047.17/290,104.11
  6. Step 6: Final answer
    x = 259,568.74

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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.