Home / 99,700-220,136

Finding the Third Proportional to 99,700 and 220,136

Calculator

Solution

The third proportional to 99,700 and 220,136 is: 486,056.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,700 : 220,136 = 220,136 : x
  2. Step 2: Convert to fraction form
    99,700/220,136 = 220,136/x
  3. Step 3: Cross multiply
    99,700x = 220,136 × 220,136
  4. Step 4: Simplify right side
    99,700x = 48,459,858,496
  5. Step 5: Solve for x
    x = 48,459,858,496/99,700
  6. Step 6: Final answer
    x = 486,056.76

Related Problems

Find third proportional to 49,850 and 110,068
Half scale
Find third proportional to 199,400 and 440,272
Double scale
Find third proportional to 99,702 and 220,140
Similar ratio
Find third proportional to 149,550 and 330,204
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.