Home / 217,511.12-299,992.20-179,719.76

Finding the Fourth Proportional to 217,511.12, 299,992.20 and 179,719.76

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Solution

The fourth proportional to 217,511.12, 299,992.20 and 179,719.76 is: 247,870.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,511.12 : 299,992.20 = 179,719.76 : x
  2. Step 2: Convert to fraction form
    217,511.12/299,992.20 = 179,719.76/x
  3. Step 3: Cross multiply
    217,511.12x = 299,992.20 × 179,719.76
  4. Step 4: Simplify right side
    217,511.12x = 53,914,526,185.87
  5. Step 5: Solve for x
    x = 53,914,526,185.87/217,511.12
  6. Step 6: Final answer
    x = 247,870.21

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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.