Home / 268,662-399,240

Finding the Third Proportional to 268,662 and 399,240

Calculator

Solution

The third proportional to 268,662 and 399,240 is: 593,282.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,662 : 399,240 = 399,240 : x
  2. Step 2: Convert to fraction form
    268,662/399,240 = 399,240/x
  3. Step 3: Cross multiply
    268,662x = 399,240 × 399,240
  4. Step 4: Simplify right side
    268,662x = 159,392,577,600
  5. Step 5: Solve for x
    x = 159,392,577,600/268,662
  6. Step 6: Final answer
    x = 593,282.93

Related Problems

Find third proportional to 134,331 and 199,620
Half scale
Find third proportional to 537,324 and 798,480
Double scale
Find third proportional to 268,664 and 399,243
Similar ratio
Find third proportional to 402,993 and 598,860
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.