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Finding the Fourth Proportional to 262,051.20, 392,104.80 and 192,067.20

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Solution

The fourth proportional to 262,051.20, 392,104.80 and 192,067.20 is: 287,388.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,051.20 : 392,104.80 = 192,067.20 : x
  2. Step 2: Convert to fraction form
    262,051.20/392,104.80 = 192,067.20/x
  3. Step 3: Cross multiply
    262,051.20x = 392,104.80 × 192,067.20
  4. Step 4: Simplify right side
    262,051.20x = 75,310,471,042.56
  5. Step 5: Solve for x
    x = 75,310,471,042.56/262,051.20
  6. Step 6: Final answer
    x = 287,388.38

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