Home / 276,858-395,910

Finding the Third Proportional to 276,858 and 395,910

Calculator

Solution

The third proportional to 276,858 and 395,910 is: 566,155.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,858 : 395,910 = 395,910 : x
  2. Step 2: Convert to fraction form
    276,858/395,910 = 395,910/x
  3. Step 3: Cross multiply
    276,858x = 395,910 × 395,910
  4. Step 4: Simplify right side
    276,858x = 156,744,728,100
  5. Step 5: Solve for x
    x = 156,744,728,100/276,858
  6. Step 6: Final answer
    x = 566,155.68

Related Problems

Find third proportional to 138,429 and 197,955
Half scale
Find third proportional to 553,716 and 791,820
Double scale
Find third proportional to 276,860 and 395,913
Similar ratio
Find third proportional to 415,287 and 593,865
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.