Home / 91,380-211,531.50

Finding the Third Proportional to 91,380 and 211,531.50

Calculator

Solution

The third proportional to 91,380 and 211,531.50 is: 489,664.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,380 : 211,531.50 = 211,531.50 : x
  2. Step 2: Convert to fraction form
    91,380/211,531.50 = 211,531.50/x
  3. Step 3: Cross multiply
    91,380x = 211,531.50 × 211,531.50
  4. Step 4: Simplify right side
    91,380x = 44,745,575,492.25
  5. Step 5: Solve for x
    x = 44,745,575,492.25/91,380
  6. Step 6: Final answer
    x = 489,664.87

Related Problems

Find third proportional to 45,690 and 105,765.75
Half scale
Find third proportional to 182,760 and 423,063
Double scale
Find third proportional to 91,382 and 211,536
Similar ratio
Find third proportional to 137,070 and 317,297.25
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.