Home / 135,705-289,446

Finding the Third Proportional to 135,705 and 289,446

Calculator

Solution

The third proportional to 135,705 and 289,446 is: 617,361.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,705 : 289,446 = 289,446 : x
  2. Step 2: Convert to fraction form
    135,705/289,446 = 289,446/x
  3. Step 3: Cross multiply
    135,705x = 289,446 × 289,446
  4. Step 4: Simplify right side
    135,705x = 83,778,986,916
  5. Step 5: Solve for x
    x = 83,778,986,916/135,705
  6. Step 6: Final answer
    x = 617,361.09

Related Problems

Find third proportional to 67,852.50 and 144,723
Half scale
Find third proportional to 271,410 and 578,892
Double scale
Find third proportional to 135,707 and 289,450
Similar ratio
Find third proportional to 203,557.50 and 434,169
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.