Home / 129,628-277,220

Finding the Third Proportional to 129,628 and 277,220

Calculator

Solution

The third proportional to 129,628 and 277,220 is: 592,857.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,628 : 277,220 = 277,220 : x
  2. Step 2: Convert to fraction form
    129,628/277,220 = 277,220/x
  3. Step 3: Cross multiply
    129,628x = 277,220 × 277,220
  4. Step 4: Simplify right side
    129,628x = 76,850,928,400
  5. Step 5: Solve for x
    x = 76,850,928,400/129,628
  6. Step 6: Final answer
    x = 592,857.47

Related Problems

Find third proportional to 64,814 and 138,610
Half scale
Find third proportional to 259,256 and 554,440
Double scale
Find third proportional to 129,630 and 277,224
Similar ratio
Find third proportional to 194,442 and 415,830
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.