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Finding the Fourth Proportional to 422,090.64, 582,455.52 and 240,760.80

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Solution

The fourth proportional to 422,090.64, 582,455.52 and 240,760.80 is: 332,233.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,090.64 : 582,455.52 = 240,760.80 : x
  2. Step 2: Convert to fraction form
    422,090.64/582,455.52 = 240,760.80/x
  3. Step 3: Cross multiply
    422,090.64x = 582,455.52 × 240,760.80
  4. Step 4: Simplify right side
    422,090.64x = 140,232,456,959.62
  5. Step 5: Solve for x
    x = 140,232,456,959.62/422,090.64
  6. Step 6: Final answer
    x = 332,233.04

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1.5x scale

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.