Home / 290,366.13-400,716.57-161,314.35

Finding the Fourth Proportional to 290,366.13, 400,716.57 and 161,314.35

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Solution

The fourth proportional to 290,366.13, 400,716.57 and 161,314.35 is: 222,620.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,366.13 : 400,716.57 = 161,314.35 : x
  2. Step 2: Convert to fraction form
    290,366.13/400,716.57 = 161,314.35/x
  3. Step 3: Cross multiply
    290,366.13x = 400,716.57 × 161,314.35
  4. Step 4: Simplify right side
    290,366.13x = 64,641,333,023.78
  5. Step 5: Solve for x
    x = 64,641,333,023.78/290,366.13
  6. Step 6: Final answer
    x = 222,620.09

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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.