Home / 128,448-265,842

Finding the Third Proportional to 128,448 and 265,842

Calculator

Solution

The third proportional to 128,448 and 265,842 is: 550,199.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,448 : 265,842 = 265,842 : x
  2. Step 2: Convert to fraction form
    128,448/265,842 = 265,842/x
  3. Step 3: Cross multiply
    128,448x = 265,842 × 265,842
  4. Step 4: Simplify right side
    128,448x = 70,671,968,964
  5. Step 5: Solve for x
    x = 70,671,968,964/128,448
  6. Step 6: Final answer
    x = 550,199.06

Related Problems

Find third proportional to 64,224 and 132,921
Half scale
Find third proportional to 256,896 and 531,684
Double scale
Find third proportional to 128,450 and 265,846
Similar ratio
Find third proportional to 192,672 and 398,763
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.