Home / 135,099-291,138

Finding the Third Proportional to 135,099 and 291,138

Calculator

Solution

The third proportional to 135,099 and 291,138 is: 627,401.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,099 : 291,138 = 291,138 : x
  2. Step 2: Convert to fraction form
    135,099/291,138 = 291,138/x
  3. Step 3: Cross multiply
    135,099x = 291,138 × 291,138
  4. Step 4: Simplify right side
    135,099x = 84,761,335,044
  5. Step 5: Solve for x
    x = 84,761,335,044/135,099
  6. Step 6: Final answer
    x = 627,401.65

Related Problems

Find third proportional to 67,549.50 and 145,569
Half scale
Find third proportional to 270,198 and 582,276
Double scale
Find third proportional to 135,101 and 291,142
Similar ratio
Find third proportional to 202,648.50 and 436,707
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.