Home / 257,944-394,328

Finding the Third Proportional to 257,944 and 394,328

Calculator

Solution

The third proportional to 257,944 and 394,328 is: 602,822.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,944 : 394,328 = 394,328 : x
  2. Step 2: Convert to fraction form
    257,944/394,328 = 394,328/x
  3. Step 3: Cross multiply
    257,944x = 394,328 × 394,328
  4. Step 4: Simplify right side
    257,944x = 155,494,571,584
  5. Step 5: Solve for x
    x = 155,494,571,584/257,944
  6. Step 6: Final answer
    x = 602,822.98

Related Problems

Find third proportional to 128,972 and 197,164
Half scale
Find third proportional to 515,888 and 788,656
Double scale
Find third proportional to 257,946 and 394,331
Similar ratio
Find third proportional to 386,916 and 591,492
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.