Home / 139,565-204,811

Finding the Third Proportional to 139,565 and 204,811

Calculator

Solution

The third proportional to 139,565 and 204,811 is: 300,559.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,565 : 204,811 = 204,811 : x
  2. Step 2: Convert to fraction form
    139,565/204,811 = 204,811/x
  3. Step 3: Cross multiply
    139,565x = 204,811 × 204,811
  4. Step 4: Simplify right side
    139,565x = 41,947,545,721
  5. Step 5: Solve for x
    x = 41,947,545,721/139,565
  6. Step 6: Final answer
    x = 300,559.21

Related Problems

Find third proportional to 69,782.50 and 102,405.50
Half scale
Find third proportional to 279,130 and 409,622
Double scale
Find third proportional to 139,567 and 204,814
Similar ratio
Find third proportional to 209,347.50 and 307,216.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.