Home / 166,879-258,240

Finding the Third Proportional to 166,879 and 258,240

Calculator

Solution

The third proportional to 166,879 and 258,240 is: 399,618.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,879 : 258,240 = 258,240 : x
  2. Step 2: Convert to fraction form
    166,879/258,240 = 258,240/x
  3. Step 3: Cross multiply
    166,879x = 258,240 × 258,240
  4. Step 4: Simplify right side
    166,879x = 66,687,897,600
  5. Step 5: Solve for x
    x = 66,687,897,600/166,879
  6. Step 6: Final answer
    x = 399,618.27

Related Problems

Find third proportional to 83,439.50 and 129,120
Half scale
Find third proportional to 333,758 and 516,480
Double scale
Find third proportional to 166,881 and 258,243
Similar ratio
Find third proportional to 250,318.50 and 387,360
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.