Home / 218,412-329,156

Finding the Third Proportional to 218,412 and 329,156

Calculator

Solution

The third proportional to 218,412 and 329,156 is: 496,051.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,412 : 329,156 = 329,156 : x
  2. Step 2: Convert to fraction form
    218,412/329,156 = 329,156/x
  3. Step 3: Cross multiply
    218,412x = 329,156 × 329,156
  4. Step 4: Simplify right side
    218,412x = 108,343,672,336
  5. Step 5: Solve for x
    x = 108,343,672,336/218,412
  6. Step 6: Final answer
    x = 496,051.83

Related Problems

Find third proportional to 109,206 and 164,578
Half scale
Find third proportional to 436,824 and 658,312
Double scale
Find third proportional to 218,414 and 329,159
Similar ratio
Find third proportional to 327,618 and 493,734
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.