Home / 122,871-258,855

Finding the Third Proportional to 122,871 and 258,855

Calculator

Solution

The third proportional to 122,871 and 258,855 is: 545,335.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,871 : 258,855 = 258,855 : x
  2. Step 2: Convert to fraction form
    122,871/258,855 = 258,855/x
  3. Step 3: Cross multiply
    122,871x = 258,855 × 258,855
  4. Step 4: Simplify right side
    122,871x = 67,005,911,025
  5. Step 5: Solve for x
    x = 67,005,911,025/122,871
  6. Step 6: Final answer
    x = 545,335.44

Related Problems

Find third proportional to 61,435.50 and 129,427.50
Half scale
Find third proportional to 245,742 and 517,710
Double scale
Find third proportional to 122,873 and 258,859
Similar ratio
Find third proportional to 184,306.50 and 388,282.50
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.