Home / 202,340-312,636

Finding the Third Proportional to 202,340 and 312,636

Calculator

Solution

The third proportional to 202,340 and 312,636 is: 483,054.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,340 : 312,636 = 312,636 : x
  2. Step 2: Convert to fraction form
    202,340/312,636 = 312,636/x
  3. Step 3: Cross multiply
    202,340x = 312,636 × 312,636
  4. Step 4: Simplify right side
    202,340x = 97,741,268,496
  5. Step 5: Solve for x
    x = 97,741,268,496/202,340
  6. Step 6: Final answer
    x = 483,054.60

Related Problems

Find third proportional to 101,170 and 156,318
Half scale
Find third proportional to 404,680 and 625,272
Double scale
Find third proportional to 202,342 and 312,639
Similar ratio
Find third proportional to 303,510 and 468,954
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.