Home / 131,576-289,396

Finding the Third Proportional to 131,576 and 289,396

Calculator

Solution

The third proportional to 131,576 and 289,396 is: 636,514.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,576 : 289,396 = 289,396 : x
  2. Step 2: Convert to fraction form
    131,576/289,396 = 289,396/x
  3. Step 3: Cross multiply
    131,576x = 289,396 × 289,396
  4. Step 4: Simplify right side
    131,576x = 83,750,044,816
  5. Step 5: Solve for x
    x = 83,750,044,816/131,576
  6. Step 6: Final answer
    x = 636,514.60

Related Problems

Find third proportional to 65,788 and 144,698
Half scale
Find third proportional to 263,152 and 578,792
Double scale
Find third proportional to 131,578 and 289,400
Similar ratio
Find third proportional to 197,364 and 434,094
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.