Home / 238,760-518,220

Finding the Third Proportional to 238,760 and 518,220

Calculator

Solution

The third proportional to 238,760 and 518,220 is: 1,124,777.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,760 : 518,220 = 518,220 : x
  2. Step 2: Convert to fraction form
    238,760/518,220 = 518,220/x
  3. Step 3: Cross multiply
    238,760x = 518,220 × 518,220
  4. Step 4: Simplify right side
    238,760x = 268,551,968,400
  5. Step 5: Solve for x
    x = 268,551,968,400/238,760
  6. Step 6: Final answer
    x = 1,124,777.89

Related Problems

Find third proportional to 119,380 and 259,110
Half scale
Find third proportional to 477,520 and 1,036,440
Double scale
Find third proportional to 238,762 and 518,224
Similar ratio
Find third proportional to 358,140 and 777,330
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.