Home / 172,158-372,903

Finding the Third Proportional to 172,158 and 372,903

Calculator

Solution

The third proportional to 172,158 and 372,903 is: 807,726.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,158 : 372,903 = 372,903 : x
  2. Step 2: Convert to fraction form
    172,158/372,903 = 372,903/x
  3. Step 3: Cross multiply
    172,158x = 372,903 × 372,903
  4. Step 4: Simplify right side
    172,158x = 139,056,647,409
  5. Step 5: Solve for x
    x = 139,056,647,409/172,158
  6. Step 6: Final answer
    x = 807,726.90

Related Problems

Find third proportional to 86,079 and 186,451.50
Half scale
Find third proportional to 344,316 and 745,806
Double scale
Find third proportional to 172,160 and 372,907
Similar ratio
Find third proportional to 258,237 and 559,354.50
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.