Home / 218,950-329,991

Finding the Third Proportional to 218,950 and 329,991

Calculator

Solution

The third proportional to 218,950 and 329,991 is: 497,346.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,950 : 329,991 = 329,991 : x
  2. Step 2: Convert to fraction form
    218,950/329,991 = 329,991/x
  3. Step 3: Cross multiply
    218,950x = 329,991 × 329,991
  4. Step 4: Simplify right side
    218,950x = 108,894,060,081
  5. Step 5: Solve for x
    x = 108,894,060,081/218,950
  6. Step 6: Final answer
    x = 497,346.70

Related Problems

Find third proportional to 109,475 and 164,995.50
Half scale
Find third proportional to 437,900 and 659,982
Double scale
Find third proportional to 218,952 and 329,994
Similar ratio
Find third proportional to 328,425 and 494,986.50
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.