Home / 155,861-340,880

Finding the Third Proportional to 155,861 and 340,880

Calculator

Solution

The third proportional to 155,861 and 340,880 is: 745,530.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,861 : 340,880 = 340,880 : x
  2. Step 2: Convert to fraction form
    155,861/340,880 = 340,880/x
  3. Step 3: Cross multiply
    155,861x = 340,880 × 340,880
  4. Step 4: Simplify right side
    155,861x = 116,199,174,400
  5. Step 5: Solve for x
    x = 116,199,174,400/155,861
  6. Step 6: Final answer
    x = 745,530.79

Related Problems

Find third proportional to 77,930.50 and 170,440
Half scale
Find third proportional to 311,722 and 681,760
Double scale
Find third proportional to 155,863 and 340,884
Similar ratio
Find third proportional to 233,791.50 and 511,320
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.