Home / 135,672-289,356

Finding the Third Proportional to 135,672 and 289,356

Calculator

Solution

The third proportional to 135,672 and 289,356 is: 617,127.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,672 : 289,356 = 289,356 : x
  2. Step 2: Convert to fraction form
    135,672/289,356 = 289,356/x
  3. Step 3: Cross multiply
    135,672x = 289,356 × 289,356
  4. Step 4: Simplify right side
    135,672x = 83,726,894,736
  5. Step 5: Solve for x
    x = 83,726,894,736/135,672
  6. Step 6: Final answer
    x = 617,127.30

Related Problems

Find third proportional to 67,836 and 144,678
Half scale
Find third proportional to 271,344 and 578,712
Double scale
Find third proportional to 135,674 and 289,360
Similar ratio
Find third proportional to 203,508 and 434,034
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.