Home / 258,615-401,373

Finding the Third Proportional to 258,615 and 401,373

Calculator

Solution

The third proportional to 258,615 and 401,373 is: 622,934.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,615 : 401,373 = 401,373 : x
  2. Step 2: Convert to fraction form
    258,615/401,373 = 401,373/x
  3. Step 3: Cross multiply
    258,615x = 401,373 × 401,373
  4. Step 4: Simplify right side
    258,615x = 161,100,285,129
  5. Step 5: Solve for x
    x = 161,100,285,129/258,615
  6. Step 6: Final answer
    x = 622,934.81

Related Problems

Find third proportional to 129,307.50 and 200,686.50
Half scale
Find third proportional to 517,230 and 802,746
Double scale
Find third proportional to 258,617 and 401,376
Similar ratio
Find third proportional to 387,922.50 and 602,059.50
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.