Home / 269,243-422,400

Finding the Third Proportional to 269,243 and 422,400

Calculator

Solution

The third proportional to 269,243 and 422,400 is: 662,679.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,243 : 422,400 = 422,400 : x
  2. Step 2: Convert to fraction form
    269,243/422,400 = 422,400/x
  3. Step 3: Cross multiply
    269,243x = 422,400 × 422,400
  4. Step 4: Simplify right side
    269,243x = 178,421,760,000
  5. Step 5: Solve for x
    x = 178,421,760,000/269,243
  6. Step 6: Final answer
    x = 662,679.29

Related Problems

Find third proportional to 134,621.50 and 211,200
Half scale
Find third proportional to 538,486 and 844,800
Double scale
Find third proportional to 269,245 and 422,403
Similar ratio
Find third proportional to 403,864.50 and 633,600
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.