Home / 290,476.12-400,849.04-161,411.26

Finding the Fourth Proportional to 290,476.12, 400,849.04 and 161,411.26

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Solution

The fourth proportional to 290,476.12, 400,849.04 and 161,411.26 is: 222,743.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,476.12 : 400,849.04 = 161,411.26 : x
  2. Step 2: Convert to fraction form
    290,476.12/400,849.04 = 161,411.26/x
  3. Step 3: Cross multiply
    290,476.12x = 400,849.04 × 161,411.26
  4. Step 4: Simplify right side
    290,476.12x = 64,701,548,616.19
  5. Step 5: Solve for x
    x = 64,701,548,616.19/290,476.12
  6. Step 6: Final answer
    x = 222,743.09

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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.