Home / 128,034-203,580

Finding the Third Proportional to 128,034 and 203,580

Calculator

Solution

The third proportional to 128,034 and 203,580 is: 323,701.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,034 : 203,580 = 203,580 : x
  2. Step 2: Convert to fraction form
    128,034/203,580 = 203,580/x
  3. Step 3: Cross multiply
    128,034x = 203,580 × 203,580
  4. Step 4: Simplify right side
    128,034x = 41,444,816,400
  5. Step 5: Solve for x
    x = 41,444,816,400/128,034
  6. Step 6: Final answer
    x = 323,701.64

Related Problems

Find third proportional to 64,017 and 101,790
Half scale
Find third proportional to 256,068 and 407,160
Double scale
Find third proportional to 128,036 and 203,583
Similar ratio
Find third proportional to 192,051 and 305,370
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.