Home / 259,279-388,923

Finding the Third Proportional to 259,279 and 388,923

Calculator

Solution

The third proportional to 259,279 and 388,923 is: 583,391.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,279 : 388,923 = 388,923 : x
  2. Step 2: Convert to fraction form
    259,279/388,923 = 388,923/x
  3. Step 3: Cross multiply
    259,279x = 388,923 × 388,923
  4. Step 4: Simplify right side
    259,279x = 151,261,099,929
  5. Step 5: Solve for x
    x = 151,261,099,929/259,279
  6. Step 6: Final answer
    x = 583,391.25

Related Problems

Find third proportional to 129,639.50 and 194,461.50
Half scale
Find third proportional to 518,558 and 777,846
Double scale
Find third proportional to 259,281 and 388,926
Similar ratio
Find third proportional to 388,918.50 and 583,384.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.