Home / 69,990-151,644

Finding the Third Proportional to 69,990 and 151,644

Calculator

Solution

The third proportional to 69,990 and 151,644 is: 328,559.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,990 : 151,644 = 151,644 : x
  2. Step 2: Convert to fraction form
    69,990/151,644 = 151,644/x
  3. Step 3: Cross multiply
    69,990x = 151,644 × 151,644
  4. Step 4: Simplify right side
    69,990x = 22,995,902,736
  5. Step 5: Solve for x
    x = 22,995,902,736/69,990
  6. Step 6: Final answer
    x = 328,559.83

Related Problems

Find third proportional to 34,995 and 75,822
Half scale
Find third proportional to 139,980 and 303,288
Double scale
Find third proportional to 69,992 and 151,648
Similar ratio
Find third proportional to 104,985 and 227,466
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.