Home / 552-666

Finding the Third Proportional to 552 and 666

Calculator

Solution

The third proportional to 552 and 666 is: 803.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    552 : 666 = 666 : x
  2. Step 2: Convert to fraction form
    552/666 = 666/x
  3. Step 3: Cross multiply
    552x = 666 × 666
  4. Step 4: Simplify right side
    552x = 443,556
  5. Step 5: Solve for x
    x = 443,556/552
  6. Step 6: Final answer
    x = 803.54

Related Problems

Find third proportional to 276 and 333
Half scale
Find third proportional to 1,104 and 1,332
Double scale
Find third proportional to 554 and 668
Similar ratio
Find third proportional to 828 and 999
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.