Home / 549.75-666.75

Finding the Third Proportional to 549.75 and 666.75

Calculator

Solution

The third proportional to 549.75 and 666.75 is: 808.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    549.75 : 666.75 = 666.75 : x
  2. Step 2: Convert to fraction form
    549.75/666.75 = 666.75/x
  3. Step 3: Cross multiply
    549.75x = 666.75 × 666.75
  4. Step 4: Simplify right side
    549.75x = 444,555.56
  5. Step 5: Solve for x
    x = 444,555.56/549.75
  6. Step 6: Final answer
    x = 808.65

Related Problems

Find third proportional to 274.88 and 333.38
Half scale
Find third proportional to 1,099.50 and 1,333.50
Double scale
Find third proportional to 552 and 669
Similar ratio
Find third proportional to 824.63 and 1,000.13
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.