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Finding the Fourth Proportional to 290,104.30, 400,323.90 and 161,032.69

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Solution

The fourth proportional to 290,104.30, 400,323.90 and 161,032.69 is: 222,213.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,104.30 : 400,323.90 = 161,032.69 : x
  2. Step 2: Convert to fraction form
    290,104.30/400,323.90 = 161,032.69/x
  3. Step 3: Cross multiply
    290,104.30x = 400,323.90 × 161,032.69
  4. Step 4: Simplify right side
    290,104.30x = 64,465,234,488.29
  5. Step 5: Solve for x
    x = 64,465,234,488.29/290,104.30
  6. Step 6: Final answer
    x = 222,213.99

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.