Home / 154,450-316,425

Finding the Third Proportional to 154,450 and 316,425

Calculator

Solution

The third proportional to 154,450 and 316,425 is: 648,266.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,450 : 316,425 = 316,425 : x
  2. Step 2: Convert to fraction form
    154,450/316,425 = 316,425/x
  3. Step 3: Cross multiply
    154,450x = 316,425 × 316,425
  4. Step 4: Simplify right side
    154,450x = 100,124,780,625
  5. Step 5: Solve for x
    x = 100,124,780,625/154,450
  6. Step 6: Final answer
    x = 648,266.63

Related Problems

Find third proportional to 77,225 and 158,212.50
Half scale
Find third proportional to 308,900 and 632,850
Double scale
Find third proportional to 154,452 and 316,429
Similar ratio
Find third proportional to 231,675 and 474,637.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.