Home / 128,206-278,044

Finding the Third Proportional to 128,206 and 278,044

Calculator

Solution

The third proportional to 128,206 and 278,044 is: 603,001.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,206 : 278,044 = 278,044 : x
  2. Step 2: Convert to fraction form
    128,206/278,044 = 278,044/x
  3. Step 3: Cross multiply
    128,206x = 278,044 × 278,044
  4. Step 4: Simplify right side
    128,206x = 77,308,465,936
  5. Step 5: Solve for x
    x = 77,308,465,936/128,206
  6. Step 6: Final answer
    x = 603,001.93

Related Problems

Find third proportional to 64,103 and 139,022
Half scale
Find third proportional to 256,412 and 556,088
Double scale
Find third proportional to 128,208 and 278,048
Similar ratio
Find third proportional to 192,309 and 417,066
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.