Home / 198,438-436,386

Finding the Third Proportional to 198,438 and 436,386

Calculator

Solution

The third proportional to 198,438 and 436,386 is: 959,658.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,438 : 436,386 = 436,386 : x
  2. Step 2: Convert to fraction form
    198,438/436,386 = 436,386/x
  3. Step 3: Cross multiply
    198,438x = 436,386 × 436,386
  4. Step 4: Simplify right side
    198,438x = 190,432,740,996
  5. Step 5: Solve for x
    x = 190,432,740,996/198,438
  6. Step 6: Final answer
    x = 959,658.64

Related Problems

Find third proportional to 99,219 and 218,193
Half scale
Find third proportional to 396,876 and 872,772
Double scale
Find third proportional to 198,440 and 436,390
Similar ratio
Find third proportional to 297,657 and 654,579
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.