Home / 203,880-310,315.50

Finding the Third Proportional to 203,880 and 310,315.50

Calculator

Solution

The third proportional to 203,880 and 310,315.50 is: 472,315.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,880 : 310,315.50 = 310,315.50 : x
  2. Step 2: Convert to fraction form
    203,880/310,315.50 = 310,315.50/x
  3. Step 3: Cross multiply
    203,880x = 310,315.50 × 310,315.50
  4. Step 4: Simplify right side
    203,880x = 96,295,709,540.25
  5. Step 5: Solve for x
    x = 96,295,709,540.25/203,880
  6. Step 6: Final answer
    x = 472,315.62

Related Problems

Find third proportional to 101,940 and 155,157.75
Half scale
Find third proportional to 407,760 and 620,631
Double scale
Find third proportional to 203,882 and 310,319
Similar ratio
Find third proportional to 305,820 and 465,473.25
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.