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Finding the Fourth Proportional to 211,240.80, 291,511.44 and 115,753.44

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Solution

The fourth proportional to 211,240.80, 291,511.44 and 115,753.44 is: 159,739.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,240.80 : 291,511.44 = 115,753.44 : x
  2. Step 2: Convert to fraction form
    211,240.80/291,511.44 = 115,753.44/x
  3. Step 3: Cross multiply
    211,240.80x = 291,511.44 × 115,753.44
  4. Step 4: Simplify right side
    211,240.80x = 33,743,451,979.35
  5. Step 5: Solve for x
    x = 33,743,451,979.35/211,240.80
  6. Step 6: Final answer
    x = 159,739.27

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.