Home / 99,172-218,000

Finding the Third Proportional to 99,172 and 218,000

Calculator

Solution

The third proportional to 99,172 and 218,000 is: 479,207.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,172 : 218,000 = 218,000 : x
  2. Step 2: Convert to fraction form
    99,172/218,000 = 218,000/x
  3. Step 3: Cross multiply
    99,172x = 218,000 × 218,000
  4. Step 4: Simplify right side
    99,172x = 47,524,000,000
  5. Step 5: Solve for x
    x = 47,524,000,000/99,172
  6. Step 6: Final answer
    x = 479,207.84

Related Problems

Find third proportional to 49,586 and 109,000
Half scale
Find third proportional to 198,344 and 436,000
Double scale
Find third proportional to 99,174 and 218,004
Similar ratio
Find third proportional to 148,758 and 327,000
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.