Home / 129,952-279,240

Finding the Third Proportional to 129,952 and 279,240

Calculator

Solution

The third proportional to 129,952 and 279,240 is: 600,029.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,952 : 279,240 = 279,240 : x
  2. Step 2: Convert to fraction form
    129,952/279,240 = 279,240/x
  3. Step 3: Cross multiply
    129,952x = 279,240 × 279,240
  4. Step 4: Simplify right side
    129,952x = 77,974,977,600
  5. Step 5: Solve for x
    x = 77,974,977,600/129,952
  6. Step 6: Final answer
    x = 600,029.07

Related Problems

Find third proportional to 64,976 and 139,620
Half scale
Find third proportional to 259,904 and 558,480
Double scale
Find third proportional to 129,954 and 279,244
Similar ratio
Find third proportional to 194,928 and 418,860
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.