Home / 207,479-320,421

Finding the Third Proportional to 207,479 and 320,421

Calculator

Solution

The third proportional to 207,479 and 320,421 is: 494,843.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,479 : 320,421 = 320,421 : x
  2. Step 2: Convert to fraction form
    207,479/320,421 = 320,421/x
  3. Step 3: Cross multiply
    207,479x = 320,421 × 320,421
  4. Step 4: Simplify right side
    207,479x = 102,669,617,241
  5. Step 5: Solve for x
    x = 102,669,617,241/207,479
  6. Step 6: Final answer
    x = 494,843.42

Related Problems

Find third proportional to 103,739.50 and 160,210.50
Half scale
Find third proportional to 414,958 and 640,842
Double scale
Find third proportional to 207,481 and 320,424
Similar ratio
Find third proportional to 311,218.50 and 480,631.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.