Home / 400,719.25-552,992.57-221,882.77

Finding the Fourth Proportional to 400,719.25, 552,992.57 and 221,882.77

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Solution

The fourth proportional to 400,719.25, 552,992.57 and 221,882.77 is: 306,198.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,719.25 : 552,992.57 = 221,882.77 : x
  2. Step 2: Convert to fraction form
    400,719.25/552,992.57 = 221,882.77/x
  3. Step 3: Cross multiply
    400,719.25x = 552,992.57 × 221,882.77
  4. Step 4: Simplify right side
    400,719.25x = 122,699,522,111.61
  5. Step 5: Solve for x
    x = 122,699,522,111.61/400,719.25
  6. Step 6: Final answer
    x = 306,198.22

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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.