Home / 99,728-215,310

Finding the Third Proportional to 99,728 and 215,310

Calculator

Solution

The third proportional to 99,728 and 215,310 is: 464,848.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,728 : 215,310 = 215,310 : x
  2. Step 2: Convert to fraction form
    99,728/215,310 = 215,310/x
  3. Step 3: Cross multiply
    99,728x = 215,310 × 215,310
  4. Step 4: Simplify right side
    99,728x = 46,358,396,100
  5. Step 5: Solve for x
    x = 46,358,396,100/99,728
  6. Step 6: Final answer
    x = 464,848.35

Related Problems

Find third proportional to 49,864 and 107,655
Half scale
Find third proportional to 199,456 and 430,620
Double scale
Find third proportional to 99,730 and 215,314
Similar ratio
Find third proportional to 149,592 and 322,965
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.