Home / 208,914-318,267

Finding the Third Proportional to 208,914 and 318,267

Calculator

Solution

The third proportional to 208,914 and 318,267 is: 484,859.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,914 : 318,267 = 318,267 : x
  2. Step 2: Convert to fraction form
    208,914/318,267 = 318,267/x
  3. Step 3: Cross multiply
    208,914x = 318,267 × 318,267
  4. Step 4: Simplify right side
    208,914x = 101,293,883,289
  5. Step 5: Solve for x
    x = 101,293,883,289/208,914
  6. Step 6: Final answer
    x = 484,859.24

Related Problems

Find third proportional to 104,457 and 159,133.50
Half scale
Find third proportional to 417,828 and 636,534
Double scale
Find third proportional to 208,916 and 318,270
Similar ratio
Find third proportional to 313,371 and 477,400.50
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.