Home / 475.80-668.11

Finding the Third Proportional to 475.80 and 668.11

Calculator

Solution

The third proportional to 475.80 and 668.11 is: 938.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    475.80 : 668.11 = 668.11 : x
  2. Step 2: Convert to fraction form
    475.80/668.11 = 668.11/x
  3. Step 3: Cross multiply
    475.80x = 668.11 × 668.11
  4. Step 4: Simplify right side
    475.80x = 446,370.14
  5. Step 5: Solve for x
    x = 446,370.14/475.80
  6. Step 6: Final answer
    x = 938.14

Related Problems

Find third proportional to 237.90 and 334.05
Half scale
Find third proportional to 951.61 and 1,336.22
Double scale
Find third proportional to 478 and 671
Similar ratio
Find third proportional to 713.71 and 1,002.16
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.