Home / 131,604-289,440

Finding the Third Proportional to 131,604 and 289,440

Calculator

Solution

The third proportional to 131,604 and 289,440 is: 636,572.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,604 : 289,440 = 289,440 : x
  2. Step 2: Convert to fraction form
    131,604/289,440 = 289,440/x
  3. Step 3: Cross multiply
    131,604x = 289,440 × 289,440
  4. Step 4: Simplify right side
    131,604x = 83,775,513,600
  5. Step 5: Solve for x
    x = 83,775,513,600/131,604
  6. Step 6: Final answer
    x = 636,572.70

Related Problems

Find third proportional to 65,802 and 144,720
Half scale
Find third proportional to 263,208 and 578,880
Double scale
Find third proportional to 131,606 and 289,444
Similar ratio
Find third proportional to 197,406 and 434,160
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.