Home / 252.28-628.17

Finding the Third Proportional to 252.28 and 628.17

Calculator

Solution

The third proportional to 252.28 and 628.17 is: 1,564.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    252.28 : 628.17 = 628.17 : x
  2. Step 2: Convert to fraction form
    252.28/628.17 = 628.17/x
  3. Step 3: Cross multiply
    252.28x = 628.17 × 628.17
  4. Step 4: Simplify right side
    252.28x = 394,599.90
  5. Step 5: Solve for x
    x = 394,599.90/252.28
  6. Step 6: Final answer
    x = 1,564.13

Related Problems

Find third proportional to 126.14 and 314.09
Half scale
Find third proportional to 504.56 and 1,256.34
Double scale
Find third proportional to 254 and 633
Similar ratio
Find third proportional to 378.42 and 942.26
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.