Home / 253,640-379,668

Finding the Third Proportional to 253,640 and 379,668

Calculator

Solution

The third proportional to 253,640 and 379,668 is: 568,316.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,640 : 379,668 = 379,668 : x
  2. Step 2: Convert to fraction form
    253,640/379,668 = 379,668/x
  3. Step 3: Cross multiply
    253,640x = 379,668 × 379,668
  4. Step 4: Simplify right side
    253,640x = 144,147,790,224
  5. Step 5: Solve for x
    x = 144,147,790,224/253,640
  6. Step 6: Final answer
    x = 568,316.47

Related Problems

Find third proportional to 126,820 and 189,834
Half scale
Find third proportional to 507,280 and 759,336
Double scale
Find third proportional to 253,642 and 379,671
Similar ratio
Find third proportional to 380,460 and 569,502
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.