Home / 154,491-206,920

Finding the Third Proportional to 154,491 and 206,920

Calculator

Solution

The third proportional to 154,491 and 206,920 is: 277,141.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,491 : 206,920 = 206,920 : x
  2. Step 2: Convert to fraction form
    154,491/206,920 = 206,920/x
  3. Step 3: Cross multiply
    154,491x = 206,920 × 206,920
  4. Step 4: Simplify right side
    154,491x = 42,815,886,400
  5. Step 5: Solve for x
    x = 42,815,886,400/154,491
  6. Step 6: Final answer
    x = 277,141.62

Related Problems

Find third proportional to 77,245.50 and 103,460
Half scale
Find third proportional to 308,982 and 413,840
Double scale
Find third proportional to 154,493 and 206,923
Similar ratio
Find third proportional to 231,736.50 and 310,380
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.