Home / 131,556-289,356

Finding the Third Proportional to 131,556 and 289,356

Calculator

Solution

The third proportional to 131,556 and 289,356 is: 636,435.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,556 : 289,356 = 289,356 : x
  2. Step 2: Convert to fraction form
    131,556/289,356 = 289,356/x
  3. Step 3: Cross multiply
    131,556x = 289,356 × 289,356
  4. Step 4: Simplify right side
    131,556x = 83,726,894,736
  5. Step 5: Solve for x
    x = 83,726,894,736/131,556
  6. Step 6: Final answer
    x = 636,435.39

Related Problems

Find third proportional to 65,778 and 144,678
Half scale
Find third proportional to 263,112 and 578,712
Double scale
Find third proportional to 131,558 and 289,360
Similar ratio
Find third proportional to 197,334 and 434,034
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.