Home / 209,178-430,734

Finding the Third Proportional to 209,178 and 430,734

Calculator

Solution

The third proportional to 209,178 and 430,734 is: 886,956.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,178 : 430,734 = 430,734 : x
  2. Step 2: Convert to fraction form
    209,178/430,734 = 430,734/x
  3. Step 3: Cross multiply
    209,178x = 430,734 × 430,734
  4. Step 4: Simplify right side
    209,178x = 185,531,778,756
  5. Step 5: Solve for x
    x = 185,531,778,756/209,178
  6. Step 6: Final answer
    x = 886,956.46

Related Problems

Find third proportional to 104,589 and 215,367
Half scale
Find third proportional to 418,356 and 861,468
Double scale
Find third proportional to 209,180 and 430,738
Similar ratio
Find third proportional to 313,767 and 646,101
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.