Home / 120,792-256,200

Finding the Third Proportional to 120,792 and 256,200

Calculator

Solution

The third proportional to 120,792 and 256,200 is: 543,400.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,792 : 256,200 = 256,200 : x
  2. Step 2: Convert to fraction form
    120,792/256,200 = 256,200/x
  3. Step 3: Cross multiply
    120,792x = 256,200 × 256,200
  4. Step 4: Simplify right side
    120,792x = 65,638,440,000
  5. Step 5: Solve for x
    x = 65,638,440,000/120,792
  6. Step 6: Final answer
    x = 543,400.56

Related Problems

Find third proportional to 60,396 and 128,100
Half scale
Find third proportional to 241,584 and 512,400
Double scale
Find third proportional to 120,794 and 256,204
Similar ratio
Find third proportional to 181,188 and 384,300
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.