Home / 131,577-289,397

Finding the Third Proportional to 131,577 and 289,397

Calculator

Solution

The third proportional to 131,577 and 289,397 is: 636,514.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,577 : 289,397 = 289,397 : x
  2. Step 2: Convert to fraction form
    131,577/289,397 = 289,397/x
  3. Step 3: Cross multiply
    131,577x = 289,397 × 289,397
  4. Step 4: Simplify right side
    131,577x = 83,750,623,609
  5. Step 5: Solve for x
    x = 83,750,623,609/131,577
  6. Step 6: Final answer
    x = 636,514.16

Related Problems

Find third proportional to 65,788.50 and 144,698.50
Half scale
Find third proportional to 263,154 and 578,794
Double scale
Find third proportional to 131,579 and 289,401
Similar ratio
Find third proportional to 197,365.50 and 434,095.50
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.