Home / 140,059-210,188

Finding the Third Proportional to 140,059 and 210,188

Calculator

Solution

The third proportional to 140,059 and 210,188 is: 315,431.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,059 : 210,188 = 210,188 : x
  2. Step 2: Convert to fraction form
    140,059/210,188 = 210,188/x
  3. Step 3: Cross multiply
    140,059x = 210,188 × 210,188
  4. Step 4: Simplify right side
    140,059x = 44,178,995,344
  5. Step 5: Solve for x
    x = 44,178,995,344/140,059
  6. Step 6: Final answer
    x = 315,431.32

Related Problems

Find third proportional to 70,029.50 and 105,094
Half scale
Find third proportional to 280,118 and 420,376
Double scale
Find third proportional to 140,061 and 210,191
Similar ratio
Find third proportional to 210,088.50 and 315,282
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.