Home / 290,475.12-400,847.66-161,410.26

Finding the Fourth Proportional to 290,475.12, 400,847.66 and 161,410.26

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Solution

The fourth proportional to 290,475.12, 400,847.66 and 161,410.26 is: 222,741.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,475.12 : 400,847.66 = 161,410.26 : x
  2. Step 2: Convert to fraction form
    290,475.12/400,847.66 = 161,410.26/x
  3. Step 3: Cross multiply
    290,475.12x = 400,847.66 × 161,410.26
  4. Step 4: Simplify right side
    290,475.12x = 64,700,925,020.99
  5. Step 5: Solve for x
    x = 64,700,925,020.99/290,475.12
  6. Step 6: Final answer
    x = 222,741.71

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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.