Home / 191,804-421,678

Finding the Third Proportional to 191,804 and 421,678

Calculator

Solution

The third proportional to 191,804 and 421,678 is: 927,052.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,804 : 421,678 = 421,678 : x
  2. Step 2: Convert to fraction form
    191,804/421,678 = 421,678/x
  3. Step 3: Cross multiply
    191,804x = 421,678 × 421,678
  4. Step 4: Simplify right side
    191,804x = 177,812,335,684
  5. Step 5: Solve for x
    x = 177,812,335,684/191,804
  6. Step 6: Final answer
    x = 927,052.28

Related Problems

Find third proportional to 95,902 and 210,839
Half scale
Find third proportional to 383,608 and 843,356
Double scale
Find third proportional to 191,806 and 421,682
Similar ratio
Find third proportional to 287,706 and 632,517
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.