Home / 69,260-149,115

Finding the Third Proportional to 69,260 and 149,115

Calculator

Solution

The third proportional to 69,260 and 149,115 is: 321,040.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,260 : 149,115 = 149,115 : x
  2. Step 2: Convert to fraction form
    69,260/149,115 = 149,115/x
  3. Step 3: Cross multiply
    69,260x = 149,115 × 149,115
  4. Step 4: Simplify right side
    69,260x = 22,235,283,225
  5. Step 5: Solve for x
    x = 22,235,283,225/69,260
  6. Step 6: Final answer
    x = 321,040.76

Related Problems

Find third proportional to 34,630 and 74,557.50
Half scale
Find third proportional to 138,520 and 298,230
Double scale
Find third proportional to 69,262 and 149,119
Similar ratio
Find third proportional to 103,890 and 223,672.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.