Home / 138,951-299,934

Finding the Third Proportional to 138,951 and 299,934

Calculator

Solution

The third proportional to 138,951 and 299,934 is: 647,425.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,951 : 299,934 = 299,934 : x
  2. Step 2: Convert to fraction form
    138,951/299,934 = 299,934/x
  3. Step 3: Cross multiply
    138,951x = 299,934 × 299,934
  4. Step 4: Simplify right side
    138,951x = 89,960,404,356
  5. Step 5: Solve for x
    x = 89,960,404,356/138,951
  6. Step 6: Final answer
    x = 647,425.38

Related Problems

Find third proportional to 69,475.50 and 149,967
Half scale
Find third proportional to 277,902 and 599,868
Double scale
Find third proportional to 138,953 and 299,938
Similar ratio
Find third proportional to 208,426.50 and 449,901
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.