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Finding the Fourth Proportional to 340,540.20, 511,101.90 and 151,291.80

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Solution

The fourth proportional to 340,540.20, 511,101.90 and 151,291.80 is: 227,067.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,540.20 : 511,101.90 = 151,291.80 : x
  2. Step 2: Convert to fraction form
    340,540.20/511,101.90 = 151,291.80/x
  3. Step 3: Cross multiply
    340,540.20x = 511,101.90 × 151,291.80
  4. Step 4: Simplify right side
    340,540.20x = 77,325,526,434.42
  5. Step 5: Solve for x
    x = 77,325,526,434.42/340,540.20
  6. Step 6: Final answer
    x = 227,067.25

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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.