Home / 151,718-218,534

Finding the Third Proportional to 151,718 and 218,534

Calculator

Solution

The third proportional to 151,718 and 218,534 is: 314,775.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,718 : 218,534 = 218,534 : x
  2. Step 2: Convert to fraction form
    151,718/218,534 = 218,534/x
  3. Step 3: Cross multiply
    151,718x = 218,534 × 218,534
  4. Step 4: Simplify right side
    151,718x = 47,757,109,156
  5. Step 5: Solve for x
    x = 47,757,109,156/151,718
  6. Step 6: Final answer
    x = 314,775.50

Related Problems

Find third proportional to 75,859 and 109,267
Half scale
Find third proportional to 303,436 and 437,068
Double scale
Find third proportional to 151,720 and 218,537
Similar ratio
Find third proportional to 227,577 and 327,801
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.