Home / 258,612-401,372

Finding the Third Proportional to 258,612 and 401,372

Calculator

Solution

The third proportional to 258,612 and 401,372 is: 622,938.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,612 : 401,372 = 401,372 : x
  2. Step 2: Convert to fraction form
    258,612/401,372 = 401,372/x
  3. Step 3: Cross multiply
    258,612x = 401,372 × 401,372
  4. Step 4: Simplify right side
    258,612x = 161,099,482,384
  5. Step 5: Solve for x
    x = 161,099,482,384/258,612
  6. Step 6: Final answer
    x = 622,938.93

Related Problems

Find third proportional to 129,306 and 200,686
Half scale
Find third proportional to 517,224 and 802,744
Double scale
Find third proportional to 258,614 and 401,375
Similar ratio
Find third proportional to 387,918 and 602,058
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.