Home / 259,677-388,479

Finding the Third Proportional to 259,677 and 388,479

Calculator

Solution

The third proportional to 259,677 and 388,479 is: 581,167.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,677 : 388,479 = 388,479 : x
  2. Step 2: Convert to fraction form
    259,677/388,479 = 388,479/x
  3. Step 3: Cross multiply
    259,677x = 388,479 × 388,479
  4. Step 4: Simplify right side
    259,677x = 150,915,933,441
  5. Step 5: Solve for x
    x = 150,915,933,441/259,677
  6. Step 6: Final answer
    x = 581,167.89

Related Problems

Find third proportional to 129,838.50 and 194,239.50
Half scale
Find third proportional to 519,354 and 776,958
Double scale
Find third proportional to 259,679 and 388,482
Similar ratio
Find third proportional to 389,515.50 and 582,718.50
1.5x scale

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.