Home / 210.96-315.62

Finding the Third Proportional to 210.96 and 315.62

Calculator

Solution

The third proportional to 210.96 and 315.62 is: 472.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    210.96 : 315.62 = 315.62 : x
  2. Step 2: Convert to fraction form
    210.96/315.62 = 315.62/x
  3. Step 3: Cross multiply
    210.96x = 315.62 × 315.62
  4. Step 4: Simplify right side
    210.96x = 99,612.98
  5. Step 5: Solve for x
    x = 99,612.98/210.96
  6. Step 6: Final answer
    x = 472.18

Related Problems

Find third proportional to 105.48 and 157.81
Half scale
Find third proportional to 421.93 and 631.23
Double scale
Find third proportional to 213 and 319
Similar ratio
Find third proportional to 316.45 and 473.42
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.