Home / 328,540.20-492,032.70-222,786.60

Finding the Fourth Proportional to 328,540.20, 492,032.70 and 222,786.60

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Solution

The fourth proportional to 328,540.20, 492,032.70 and 222,786.60 is: 333,652.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,540.20 : 492,032.70 = 222,786.60 : x
  2. Step 2: Convert to fraction form
    328,540.20/492,032.70 = 222,786.60/x
  3. Step 3: Cross multiply
    328,540.20x = 492,032.70 × 222,786.60
  4. Step 4: Simplify right side
    328,540.20x = 109,618,292,321.82
  5. Step 5: Solve for x
    x = 109,618,292,321.82/328,540.20
  6. Step 6: Final answer
    x = 333,652.60

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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.