Home / 258,147-379,622

Finding the Third Proportional to 258,147 and 379,622

Calculator

Solution

The third proportional to 258,147 and 379,622 is: 558,258.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,147 : 379,622 = 379,622 : x
  2. Step 2: Convert to fraction form
    258,147/379,622 = 379,622/x
  3. Step 3: Cross multiply
    258,147x = 379,622 × 379,622
  4. Step 4: Simplify right side
    258,147x = 144,112,862,884
  5. Step 5: Solve for x
    x = 144,112,862,884/258,147
  6. Step 6: Final answer
    x = 558,258.91

Related Problems

Find third proportional to 129,073.50 and 189,811
Half scale
Find third proportional to 516,294 and 759,244
Double scale
Find third proportional to 258,149 and 379,625
Similar ratio
Find third proportional to 387,220.50 and 569,433
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.