Home / 139,588-306,824

Finding the Third Proportional to 139,588 and 306,824

Calculator

Solution

The third proportional to 139,588 and 306,824 is: 674,420.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,588 : 306,824 = 306,824 : x
  2. Step 2: Convert to fraction form
    139,588/306,824 = 306,824/x
  3. Step 3: Cross multiply
    139,588x = 306,824 × 306,824
  4. Step 4: Simplify right side
    139,588x = 94,140,966,976
  5. Step 5: Solve for x
    x = 94,140,966,976/139,588
  6. Step 6: Final answer
    x = 674,420.20

Related Problems

Find third proportional to 69,794 and 153,412
Half scale
Find third proportional to 279,176 and 613,648
Double scale
Find third proportional to 139,590 and 306,828
Similar ratio
Find third proportional to 209,382 and 460,236
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.