Home / 602.75-661.25

Finding the Third Proportional to 602.75 and 661.25

Calculator

Solution

The third proportional to 602.75 and 661.25 is: 725.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    602.75 : 661.25 = 661.25 : x
  2. Step 2: Convert to fraction form
    602.75/661.25 = 661.25/x
  3. Step 3: Cross multiply
    602.75x = 661.25 × 661.25
  4. Step 4: Simplify right side
    602.75x = 437,251.56
  5. Step 5: Solve for x
    x = 437,251.56/602.75
  6. Step 6: Final answer
    x = 725.43

Related Problems

Find third proportional to 301.38 and 330.63
Half scale
Find third proportional to 1,205.50 and 1,322.50
Double scale
Find third proportional to 605 and 663
Similar ratio
Find third proportional to 904.13 and 991.88
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.