Home / 290,426.88-400,786.86-167,916.60

Finding the Fourth Proportional to 290,426.88, 400,786.86 and 167,916.60

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Solution

The fourth proportional to 290,426.88, 400,786.86 and 167,916.60 is: 231,723.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,426.88 : 400,786.86 = 167,916.60 : x
  2. Step 2: Convert to fraction form
    290,426.88/400,786.86 = 167,916.60/x
  3. Step 3: Cross multiply
    290,426.88x = 400,786.86 × 167,916.60
  4. Step 4: Simplify right side
    290,426.88x = 67,298,766,855.88
  5. Step 5: Solve for x
    x = 67,298,766,855.88/290,426.88
  6. Step 6: Final answer
    x = 231,723.62

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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.