Home / 215,856-440,274

Finding the Third Proportional to 215,856 and 440,274

Calculator

Solution

The third proportional to 215,856 and 440,274 is: 898,011.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,856 : 440,274 = 440,274 : x
  2. Step 2: Convert to fraction form
    215,856/440,274 = 440,274/x
  3. Step 3: Cross multiply
    215,856x = 440,274 × 440,274
  4. Step 4: Simplify right side
    215,856x = 193,841,195,076
  5. Step 5: Solve for x
    x = 193,841,195,076/215,856
  6. Step 6: Final answer
    x = 898,011.61

Related Problems

Find third proportional to 107,928 and 220,137
Half scale
Find third proportional to 431,712 and 880,548
Double scale
Find third proportional to 215,858 and 440,278
Similar ratio
Find third proportional to 323,784 and 660,411
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.