Home / 161,538-331,137

Finding the Third Proportional to 161,538 and 331,137

Calculator

Solution

The third proportional to 161,538 and 331,137 is: 678,798.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,538 : 331,137 = 331,137 : x
  2. Step 2: Convert to fraction form
    161,538/331,137 = 331,137/x
  3. Step 3: Cross multiply
    161,538x = 331,137 × 331,137
  4. Step 4: Simplify right side
    161,538x = 109,651,712,769
  5. Step 5: Solve for x
    x = 109,651,712,769/161,538
  6. Step 6: Final answer
    x = 678,798.26

Related Problems

Find third proportional to 80,769 and 165,568.50
Half scale
Find third proportional to 323,076 and 662,274
Double scale
Find third proportional to 161,540 and 331,141
Similar ratio
Find third proportional to 242,307 and 496,705.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.