Home / 139,995-307,206

Finding the Third Proportional to 139,995 and 307,206

Calculator

Solution

The third proportional to 139,995 and 307,206 is: 674,134.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,995 : 307,206 = 307,206 : x
  2. Step 2: Convert to fraction form
    139,995/307,206 = 307,206/x
  3. Step 3: Cross multiply
    139,995x = 307,206 × 307,206
  4. Step 4: Simplify right side
    139,995x = 94,375,526,436
  5. Step 5: Solve for x
    x = 94,375,526,436/139,995
  6. Step 6: Final answer
    x = 674,134.98

Related Problems

Find third proportional to 69,997.50 and 153,603
Half scale
Find third proportional to 279,990 and 614,412
Double scale
Find third proportional to 139,997 and 307,210
Similar ratio
Find third proportional to 209,992.50 and 460,809
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.