Home / 201,178-418,880

Finding the Third Proportional to 201,178 and 418,880

Calculator

Solution

The third proportional to 201,178 and 418,880 is: 872,165.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,178 : 418,880 = 418,880 : x
  2. Step 2: Convert to fraction form
    201,178/418,880 = 418,880/x
  3. Step 3: Cross multiply
    201,178x = 418,880 × 418,880
  4. Step 4: Simplify right side
    201,178x = 175,460,454,400
  5. Step 5: Solve for x
    x = 175,460,454,400/201,178
  6. Step 6: Final answer
    x = 872,165.22

Related Problems

Find third proportional to 100,589 and 209,440
Half scale
Find third proportional to 402,356 and 837,760
Double scale
Find third proportional to 201,180 and 418,884
Similar ratio
Find third proportional to 301,767 and 628,320
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.