Home / 87,405-190,682

Finding the Third Proportional to 87,405 and 190,682

Calculator

Solution

The third proportional to 87,405 and 190,682 is: 415,990.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,405 : 190,682 = 190,682 : x
  2. Step 2: Convert to fraction form
    87,405/190,682 = 190,682/x
  3. Step 3: Cross multiply
    87,405x = 190,682 × 190,682
  4. Step 4: Simplify right side
    87,405x = 36,359,625,124
  5. Step 5: Solve for x
    x = 36,359,625,124/87,405
  6. Step 6: Final answer
    x = 415,990.22

Related Problems

Find third proportional to 43,702.50 and 95,341
Half scale
Find third proportional to 174,810 and 381,364
Double scale
Find third proportional to 87,407 and 190,686
Similar ratio
Find third proportional to 131,107.50 and 286,023
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.