Home / 81,621-179,280

Finding the Third Proportional to 81,621 and 179,280

Calculator

Solution

The third proportional to 81,621 and 179,280 is: 393,787.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,621 : 179,280 = 179,280 : x
  2. Step 2: Convert to fraction form
    81,621/179,280 = 179,280/x
  3. Step 3: Cross multiply
    81,621x = 179,280 × 179,280
  4. Step 4: Simplify right side
    81,621x = 32,141,318,400
  5. Step 5: Solve for x
    x = 32,141,318,400/81,621
  6. Step 6: Final answer
    x = 393,787.36

Related Problems

Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.