Home / 206,416.50-315,780

Finding the Third Proportional to 206,416.50 and 315,780

Calculator

Solution

The third proportional to 206,416.50 and 315,780 is: 483,086.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,416.50 : 315,780 = 315,780 : x
  2. Step 2: Convert to fraction form
    206,416.50/315,780 = 315,780/x
  3. Step 3: Cross multiply
    206,416.50x = 315,780 × 315,780
  4. Step 4: Simplify right side
    206,416.50x = 99,717,008,400
  5. Step 5: Solve for x
    x = 99,717,008,400/206,416.50
  6. Step 6: Final answer
    x = 483,086.42

Related Problems

Find third proportional to 103,208.25 and 157,890
Half scale
Find third proportional to 412,833 and 631,560
Double scale
Find third proportional to 206,419 and 315,783
Similar ratio
Find third proportional to 309,624.75 and 473,670
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.