Home / 140,712-299,880

Finding the Third Proportional to 140,712 and 299,880

Calculator

Solution

The third proportional to 140,712 and 299,880 is: 639,092.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,712 : 299,880 = 299,880 : x
  2. Step 2: Convert to fraction form
    140,712/299,880 = 299,880/x
  3. Step 3: Cross multiply
    140,712x = 299,880 × 299,880
  4. Step 4: Simplify right side
    140,712x = 89,928,014,400
  5. Step 5: Solve for x
    x = 89,928,014,400/140,712
  6. Step 6: Final answer
    x = 639,092.72

Related Problems

Find third proportional to 70,356 and 149,940
Half scale
Find third proportional to 281,424 and 599,760
Double scale
Find third proportional to 140,714 and 299,884
Similar ratio
Find third proportional to 211,068 and 449,820
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.