Home / 129,248-279,251

Finding the Third Proportional to 129,248 and 279,251

Calculator

Solution

The third proportional to 129,248 and 279,251 is: 603,344.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,248 : 279,251 = 279,251 : x
  2. Step 2: Convert to fraction form
    129,248/279,251 = 279,251/x
  3. Step 3: Cross multiply
    129,248x = 279,251 × 279,251
  4. Step 4: Simplify right side
    129,248x = 77,981,121,001
  5. Step 5: Solve for x
    x = 77,981,121,001/129,248
  6. Step 6: Final answer
    x = 603,344.90

Related Problems

Find third proportional to 64,624 and 139,625.50
Half scale
Find third proportional to 258,496 and 558,502
Double scale
Find third proportional to 129,250 and 279,255
Similar ratio
Find third proportional to 193,872 and 418,876.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.