Home / 78,237-170,811

Finding the Third Proportional to 78,237 and 170,811

Calculator

Solution

The third proportional to 78,237 and 170,811 is: 372,923.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,237 : 170,811 = 170,811 : x
  2. Step 2: Convert to fraction form
    78,237/170,811 = 170,811/x
  3. Step 3: Cross multiply
    78,237x = 170,811 × 170,811
  4. Step 4: Simplify right side
    78,237x = 29,176,397,721
  5. Step 5: Solve for x
    x = 29,176,397,721/78,237
  6. Step 6: Final answer
    x = 372,923.27

Related Problems

Find third proportional to 39,118.50 and 85,405.50
Half scale
Find third proportional to 156,474 and 341,622
Double scale
Find third proportional to 78,239 and 170,815
Similar ratio
Find third proportional to 117,355.50 and 256,216.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.