Home / 129,080-279,614

Finding the Third Proportional to 129,080 and 279,614

Calculator

Solution

The third proportional to 129,080 and 279,614 is: 605,701.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,080 : 279,614 = 279,614 : x
  2. Step 2: Convert to fraction form
    129,080/279,614 = 279,614/x
  3. Step 3: Cross multiply
    129,080x = 279,614 × 279,614
  4. Step 4: Simplify right side
    129,080x = 78,183,988,996
  5. Step 5: Solve for x
    x = 78,183,988,996/129,080
  6. Step 6: Final answer
    x = 605,701.81

Related Problems

Find third proportional to 64,540 and 139,807
Half scale
Find third proportional to 258,160 and 559,228
Double scale
Find third proportional to 129,082 and 279,618
Similar ratio
Find third proportional to 193,620 and 419,421
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.