Home / 258,166-371,830

Finding the Third Proportional to 258,166 and 371,830

Calculator

Solution

The third proportional to 258,166 and 371,830 is: 535,537.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,166 : 371,830 = 371,830 : x
  2. Step 2: Convert to fraction form
    258,166/371,830 = 371,830/x
  3. Step 3: Cross multiply
    258,166x = 371,830 × 371,830
  4. Step 4: Simplify right side
    258,166x = 138,257,548,900
  5. Step 5: Solve for x
    x = 138,257,548,900/258,166
  6. Step 6: Final answer
    x = 535,537.40

Related Problems

Find third proportional to 129,083 and 185,915
Half scale
Find third proportional to 516,332 and 743,660
Double scale
Find third proportional to 258,168 and 371,833
Similar ratio
Find third proportional to 387,249 and 557,745
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.