Home / 99,878.50-216,389

Finding the Third Proportional to 99,878.50 and 216,389

Calculator

Solution

The third proportional to 99,878.50 and 216,389 is: 468,811.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,878.50 : 216,389 = 216,389 : x
  2. Step 2: Convert to fraction form
    99,878.50/216,389 = 216,389/x
  3. Step 3: Cross multiply
    99,878.50x = 216,389 × 216,389
  4. Step 4: Simplify right side
    99,878.50x = 46,824,199,321
  5. Step 5: Solve for x
    x = 46,824,199,321/99,878.50
  6. Step 6: Final answer
    x = 468,811.60

Related Problems

Find third proportional to 49,939.25 and 108,194.50
Half scale
Find third proportional to 199,757 and 432,778
Double scale
Find third proportional to 99,881 and 216,393
Similar ratio
Find third proportional to 149,817.75 and 324,583.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.