Home / 245,640-379,310

Finding the Third Proportional to 245,640 and 379,310

Calculator

Solution

The third proportional to 245,640 and 379,310 is: 585,719.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,640 : 379,310 = 379,310 : x
  2. Step 2: Convert to fraction form
    245,640/379,310 = 379,310/x
  3. Step 3: Cross multiply
    245,640x = 379,310 × 379,310
  4. Step 4: Simplify right side
    245,640x = 143,876,076,100
  5. Step 5: Solve for x
    x = 143,876,076,100/245,640
  6. Step 6: Final answer
    x = 585,719.25

Related Problems

Find third proportional to 122,820 and 189,655
Half scale
Find third proportional to 491,280 and 758,620
Double scale
Find third proportional to 245,642 and 379,313
Similar ratio
Find third proportional to 368,460 and 568,965
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.