Home / 202,218-317,190

Finding the Third Proportional to 202,218 and 317,190

Calculator

Solution

The third proportional to 202,218 and 317,190 is: 497,529.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,218 : 317,190 = 317,190 : x
  2. Step 2: Convert to fraction form
    202,218/317,190 = 317,190/x
  3. Step 3: Cross multiply
    202,218x = 317,190 × 317,190
  4. Step 4: Simplify right side
    202,218x = 100,609,496,100
  5. Step 5: Solve for x
    x = 100,609,496,100/202,218
  6. Step 6: Final answer
    x = 497,529.87

Related Problems

Find third proportional to 101,109 and 158,595
Half scale
Find third proportional to 404,436 and 634,380
Double scale
Find third proportional to 202,220 and 317,193
Similar ratio
Find third proportional to 303,327 and 475,785
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.