Home / 274,078.69-421,822.69

Finding the Third Proportional to 274,078.69 and 421,822.69

Calculator

Solution

The third proportional to 274,078.69 and 421,822.69 is: 649,209.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,078.69 : 421,822.69 = 421,822.69 : x
  2. Step 2: Convert to fraction form
    274,078.69/421,822.69 = 421,822.69/x
  3. Step 3: Cross multiply
    274,078.69x = 421,822.69 × 421,822.69
  4. Step 4: Simplify right side
    274,078.69x = 177,934,379,689.72
  5. Step 5: Solve for x
    x = 177,934,379,689.72/274,078.69
  6. Step 6: Final answer
    x = 649,209.11

Related Problems

Find third proportional to 137,039.34 and 210,911.34
Half scale
Find third proportional to 548,157.38 and 843,645.38
Double scale
Find third proportional to 274,081 and 421,826
Similar ratio
Find third proportional to 411,118.03 and 632,734.03
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.