Home / 156,328-318,184

Finding the Third Proportional to 156,328 and 318,184

Calculator

Solution

The third proportional to 156,328 and 318,184 is: 647,619.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,328 : 318,184 = 318,184 : x
  2. Step 2: Convert to fraction form
    156,328/318,184 = 318,184/x
  3. Step 3: Cross multiply
    156,328x = 318,184 × 318,184
  4. Step 4: Simplify right side
    156,328x = 101,241,057,856
  5. Step 5: Solve for x
    x = 101,241,057,856/156,328
  6. Step 6: Final answer
    x = 647,619.48

Related Problems

Find third proportional to 78,164 and 159,092
Half scale
Find third proportional to 312,656 and 636,368
Double scale
Find third proportional to 156,330 and 318,188
Similar ratio
Find third proportional to 234,492 and 477,276
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.