Home / 122,478-267,420

Finding the Third Proportional to 122,478 and 267,420

Calculator

Solution

The third proportional to 122,478 and 267,420 is: 583,888.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,478 : 267,420 = 267,420 : x
  2. Step 2: Convert to fraction form
    122,478/267,420 = 267,420/x
  3. Step 3: Cross multiply
    122,478x = 267,420 × 267,420
  4. Step 4: Simplify right side
    122,478x = 71,513,456,400
  5. Step 5: Solve for x
    x = 71,513,456,400/122,478
  6. Step 6: Final answer
    x = 583,888.18

Related Problems

Find third proportional to 61,239 and 133,710
Half scale
Find third proportional to 244,956 and 534,840
Double scale
Find third proportional to 122,480 and 267,424
Similar ratio
Find third proportional to 183,717 and 401,130
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.