Home / 259,200-388,800

Finding the Third Proportional to 259,200 and 388,800

Calculator

Solution

The third proportional to 259,200 and 388,800 is: 583,200

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,200 : 388,800 = 388,800 : x
  2. Step 2: Convert to fraction form
    259,200/388,800 = 388,800/x
  3. Step 3: Cross multiply
    259,200x = 388,800 × 388,800
  4. Step 4: Simplify right side
    259,200x = 151,165,440,000
  5. Step 5: Solve for x
    x = 151,165,440,000/259,200
  6. Step 6: Final answer
    x = 583,200

Related Problems

Find third proportional to 129,600 and 194,400
Half scale
Find third proportional to 518,400 and 777,600
Double scale
Find third proportional to 259,202 and 388,803
Similar ratio
Find third proportional to 388,800 and 583,200
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.