Home / 127,878-279,080

Finding the Third Proportional to 127,878 and 279,080

Calculator

Solution

The third proportional to 127,878 and 279,080 is: 609,062.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,878 : 279,080 = 279,080 : x
  2. Step 2: Convert to fraction form
    127,878/279,080 = 279,080/x
  3. Step 3: Cross multiply
    127,878x = 279,080 × 279,080
  4. Step 4: Simplify right side
    127,878x = 77,885,646,400
  5. Step 5: Solve for x
    x = 77,885,646,400/127,878
  6. Step 6: Final answer
    x = 609,062.12

Related Problems

Find third proportional to 63,939 and 139,540
Half scale
Find third proportional to 255,756 and 558,160
Double scale
Find third proportional to 127,880 and 279,084
Similar ratio
Find third proportional to 191,817 and 418,620
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.