Home / 211,740-440,904

Finding the Third Proportional to 211,740 and 440,904

Calculator

Solution

The third proportional to 211,740 and 440,904 is: 918,089.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,740 : 440,904 = 440,904 : x
  2. Step 2: Convert to fraction form
    211,740/440,904 = 440,904/x
  3. Step 3: Cross multiply
    211,740x = 440,904 × 440,904
  4. Step 4: Simplify right side
    211,740x = 194,396,337,216
  5. Step 5: Solve for x
    x = 194,396,337,216/211,740
  6. Step 6: Final answer
    x = 918,089.81

Related Problems

Find third proportional to 105,870 and 220,452
Half scale
Find third proportional to 423,480 and 881,808
Double scale
Find third proportional to 211,742 and 440,908
Similar ratio
Find third proportional to 317,610 and 661,356
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.