Home / 366-561

Finding the Third Proportional to 366 and 561

Calculator

Solution

The third proportional to 366 and 561 is: 859.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    366 : 561 = 561 : x
  2. Step 2: Convert to fraction form
    366/561 = 561/x
  3. Step 3: Cross multiply
    366x = 561 × 561
  4. Step 4: Simplify right side
    366x = 314,721
  5. Step 5: Solve for x
    x = 314,721/366
  6. Step 6: Final answer
    x = 859.89

Related Problems

Find third proportional to 183 and 280.50
Half scale
Find third proportional to 732 and 1,122
Double scale
Find third proportional to 368 and 564
Similar ratio
Find third proportional to 549 and 841.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.