Home / 499.88-663.75

Finding the Third Proportional to 499.88 and 663.75

Calculator

Solution

The third proportional to 499.88 and 663.75 is: 881.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    499.88 : 663.75 = 663.75 : x
  2. Step 2: Convert to fraction form
    499.88/663.75 = 663.75/x
  3. Step 3: Cross multiply
    499.88x = 663.75 × 663.75
  4. Step 4: Simplify right side
    499.88x = 440,564.06
  5. Step 5: Solve for x
    x = 440,564.06/499.88
  6. Step 6: Final answer
    x = 881.35

Related Problems

Find third proportional to 249.94 and 331.88
Half scale
Find third proportional to 999.75 and 1,327.50
Double scale
Find third proportional to 502 and 666
Similar ratio
Find third proportional to 749.81 and 995.63
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.