Home / 218,461-295,155

Finding the Third Proportional to 218,461 and 295,155

Calculator

Solution

The third proportional to 218,461 and 295,155 is: 398,773.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,461 : 295,155 = 295,155 : x
  2. Step 2: Convert to fraction form
    218,461/295,155 = 295,155/x
  3. Step 3: Cross multiply
    218,461x = 295,155 × 295,155
  4. Step 4: Simplify right side
    218,461x = 87,116,474,025
  5. Step 5: Solve for x
    x = 87,116,474,025/218,461
  6. Step 6: Final answer
    x = 398,773.58

Related Problems

Find third proportional to 109,230.50 and 147,577.50
Half scale
Find third proportional to 436,922 and 590,310
Double scale
Find third proportional to 218,463 and 295,158
Similar ratio
Find third proportional to 327,691.50 and 442,732.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.