Home / 268,816.08-403,284.24-81,842.16

Finding the Fourth Proportional to 268,816.08, 403,284.24 and 81,842.16

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Solution

The fourth proportional to 268,816.08, 403,284.24 and 81,842.16 is: 122,781.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,816.08 : 403,284.24 = 81,842.16 : x
  2. Step 2: Convert to fraction form
    268,816.08/403,284.24 = 81,842.16/x
  3. Step 3: Cross multiply
    268,816.08x = 403,284.24 × 81,842.16
  4. Step 4: Simplify right side
    268,816.08x = 33,005,653,295.56
  5. Step 5: Solve for x
    x = 33,005,653,295.56/268,816.08
  6. Step 6: Final answer
    x = 122,781.54

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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.