Home / 122,907-258,174

Finding the Third Proportional to 122,907 and 258,174

Calculator

Solution

The third proportional to 122,907 and 258,174 is: 542,310.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,907 : 258,174 = 258,174 : x
  2. Step 2: Convert to fraction form
    122,907/258,174 = 258,174/x
  3. Step 3: Cross multiply
    122,907x = 258,174 × 258,174
  4. Step 4: Simplify right side
    122,907x = 66,653,814,276
  5. Step 5: Solve for x
    x = 66,653,814,276/122,907
  6. Step 6: Final answer
    x = 542,310.97

Related Problems

Find third proportional to 61,453.50 and 129,087
Half scale
Find third proportional to 245,814 and 516,348
Double scale
Find third proportional to 122,909 and 258,178
Similar ratio
Find third proportional to 184,360.50 and 387,261
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.