Home / 99,186-215,220

Finding the Third Proportional to 99,186 and 215,220

Calculator

Solution

The third proportional to 99,186 and 215,220 is: 466,997.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,186 : 215,220 = 215,220 : x
  2. Step 2: Convert to fraction form
    99,186/215,220 = 215,220/x
  3. Step 3: Cross multiply
    99,186x = 215,220 × 215,220
  4. Step 4: Simplify right side
    99,186x = 46,319,648,400
  5. Step 5: Solve for x
    x = 46,319,648,400/99,186
  6. Step 6: Final answer
    x = 466,997.85

Related Problems

Find third proportional to 49,593 and 107,610
Half scale
Find third proportional to 198,372 and 430,440
Double scale
Find third proportional to 99,188 and 215,224
Similar ratio
Find third proportional to 148,779 and 322,830
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.