Home / 69,980-149,304

Finding the Third Proportional to 69,980 and 149,304

Calculator

Solution

The third proportional to 69,980 and 149,304 is: 318,543.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,980 : 149,304 = 149,304 : x
  2. Step 2: Convert to fraction form
    69,980/149,304 = 149,304/x
  3. Step 3: Cross multiply
    69,980x = 149,304 × 149,304
  4. Step 4: Simplify right side
    69,980x = 22,291,684,416
  5. Step 5: Solve for x
    x = 22,291,684,416/69,980
  6. Step 6: Final answer
    x = 318,543.65

Related Problems

Find third proportional to 34,990 and 74,652
Half scale
Find third proportional to 139,960 and 298,608
Double scale
Find third proportional to 69,982 and 149,308
Similar ratio
Find third proportional to 104,970 and 223,956
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.