Home / 166,288-258,009

Finding the Third Proportional to 166,288 and 258,009

Calculator

Solution

The third proportional to 166,288 and 258,009 is: 400,321.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,288 : 258,009 = 258,009 : x
  2. Step 2: Convert to fraction form
    166,288/258,009 = 258,009/x
  3. Step 3: Cross multiply
    166,288x = 258,009 × 258,009
  4. Step 4: Simplify right side
    166,288x = 66,568,644,081
  5. Step 5: Solve for x
    x = 66,568,644,081/166,288
  6. Step 6: Final answer
    x = 400,321.39

Related Problems

Find third proportional to 83,144 and 129,004.50
Half scale
Find third proportional to 332,576 and 516,018
Double scale
Find third proportional to 166,290 and 258,012
Similar ratio
Find third proportional to 249,432 and 387,013.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.