Home / 218,487-332,290

Finding the Third Proportional to 218,487 and 332,290

Calculator

Solution

The third proportional to 218,487 and 332,290 is: 505,369.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,487 : 332,290 = 332,290 : x
  2. Step 2: Convert to fraction form
    218,487/332,290 = 332,290/x
  3. Step 3: Cross multiply
    218,487x = 332,290 × 332,290
  4. Step 4: Simplify right side
    218,487x = 110,416,644,100
  5. Step 5: Solve for x
    x = 110,416,644,100/218,487
  6. Step 6: Final answer
    x = 505,369.40

Related Problems

Find third proportional to 109,243.50 and 166,145
Half scale
Find third proportional to 436,974 and 664,580
Double scale
Find third proportional to 218,489 and 332,293
Similar ratio
Find third proportional to 327,730.50 and 498,435
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.