Home / 207,087-318,198

Finding the Third Proportional to 207,087 and 318,198

Calculator

Solution

The third proportional to 207,087 and 318,198 is: 488,924.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,087 : 318,198 = 318,198 : x
  2. Step 2: Convert to fraction form
    207,087/318,198 = 318,198/x
  3. Step 3: Cross multiply
    207,087x = 318,198 × 318,198
  4. Step 4: Simplify right side
    207,087x = 101,249,967,204
  5. Step 5: Solve for x
    x = 101,249,967,204/207,087
  6. Step 6: Final answer
    x = 488,924.79

Related Problems

Find third proportional to 103,543.50 and 159,099
Half scale
Find third proportional to 414,174 and 636,396
Double scale
Find third proportional to 207,089 and 318,201
Similar ratio
Find third proportional to 310,630.50 and 477,297
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.