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Finding the Fourth Proportional to 326,825.66, 490,266.73 and 90,168.33

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Solution

The fourth proportional to 326,825.66, 490,266.73 and 90,168.33 is: 135,260.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,825.66 : 490,266.73 = 90,168.33 : x
  2. Step 2: Convert to fraction form
    326,825.66/490,266.73 = 90,168.33/x
  3. Step 3: Cross multiply
    326,825.66x = 490,266.73 × 90,168.33
  4. Step 4: Simplify right side
    326,825.66x = 44,206,532,298.66
  5. Step 5: Solve for x
    x = 44,206,532,298.66/326,825.66
  6. Step 6: Final answer
    x = 135,260.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.