Home / 138,792-298,634

Finding the Third Proportional to 138,792 and 298,634

Calculator

Solution

The third proportional to 138,792 and 298,634 is: 642,560.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,792 : 298,634 = 298,634 : x
  2. Step 2: Convert to fraction form
    138,792/298,634 = 298,634/x
  3. Step 3: Cross multiply
    138,792x = 298,634 × 298,634
  4. Step 4: Simplify right side
    138,792x = 89,182,265,956
  5. Step 5: Solve for x
    x = 89,182,265,956/138,792
  6. Step 6: Final answer
    x = 642,560.57

Related Problems

Find third proportional to 69,396 and 149,317
Half scale
Find third proportional to 277,584 and 597,268
Double scale
Find third proportional to 138,794 and 298,638
Similar ratio
Find third proportional to 208,188 and 447,951
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.