Home / 129,964-279,267

Finding the Third Proportional to 129,964 and 279,267

Calculator

Solution

The third proportional to 129,964 and 279,267 is: 600,089.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,964 : 279,267 = 279,267 : x
  2. Step 2: Convert to fraction form
    129,964/279,267 = 279,267/x
  3. Step 3: Cross multiply
    129,964x = 279,267 × 279,267
  4. Step 4: Simplify right side
    129,964x = 77,990,057,289
  5. Step 5: Solve for x
    x = 77,990,057,289/129,964
  6. Step 6: Final answer
    x = 600,089.70

Related Problems

Find third proportional to 64,982 and 139,633.50
Half scale
Find third proportional to 259,928 and 558,534
Double scale
Find third proportional to 129,966 and 279,271
Similar ratio
Find third proportional to 194,946 and 418,900.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.