Home / 122,853-258,825

Finding the Third Proportional to 122,853 and 258,825

Calculator

Solution

The third proportional to 122,853 and 258,825 is: 545,288.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,853 : 258,825 = 258,825 : x
  2. Step 2: Convert to fraction form
    122,853/258,825 = 258,825/x
  3. Step 3: Cross multiply
    122,853x = 258,825 × 258,825
  4. Step 4: Simplify right side
    122,853x = 66,990,380,625
  5. Step 5: Solve for x
    x = 66,990,380,625/122,853
  6. Step 6: Final answer
    x = 545,288.93

Related Problems

Find third proportional to 61,426.50 and 129,412.50
Half scale
Find third proportional to 245,706 and 517,650
Double scale
Find third proportional to 122,855 and 258,829
Similar ratio
Find third proportional to 184,279.50 and 388,237.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.