Home / 129,040-277,856

Finding the Third Proportional to 129,040 and 277,856

Calculator

Solution

The third proportional to 129,040 and 277,856 is: 598,294.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,040 : 277,856 = 277,856 : x
  2. Step 2: Convert to fraction form
    129,040/277,856 = 277,856/x
  3. Step 3: Cross multiply
    129,040x = 277,856 × 277,856
  4. Step 4: Simplify right side
    129,040x = 77,203,956,736
  5. Step 5: Solve for x
    x = 77,203,956,736/129,040
  6. Step 6: Final answer
    x = 598,294.77

Related Problems

Find third proportional to 64,520 and 138,928
Half scale
Find third proportional to 258,080 and 555,712
Double scale
Find third proportional to 129,042 and 277,860
Similar ratio
Find third proportional to 193,560 and 416,784
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.