Home / 80,784-172,800

Finding the Third Proportional to 80,784 and 172,800

Calculator

Solution

The third proportional to 80,784 and 172,800 is: 369,625.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,784 : 172,800 = 172,800 : x
  2. Step 2: Convert to fraction form
    80,784/172,800 = 172,800/x
  3. Step 3: Cross multiply
    80,784x = 172,800 × 172,800
  4. Step 4: Simplify right side
    80,784x = 29,859,840,000
  5. Step 5: Solve for x
    x = 29,859,840,000/80,784
  6. Step 6: Final answer
    x = 369,625.67

Related Problems

Find third proportional to 40,392 and 86,400
Half scale
Find third proportional to 161,568 and 345,600
Double scale
Find third proportional to 80,786 and 172,804
Similar ratio
Find third proportional to 121,176 and 259,200
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.