Home / 208,960-318,336

Finding the Third Proportional to 208,960 and 318,336

Calculator

Solution

The third proportional to 208,960 and 318,336 is: 484,962.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,960 : 318,336 = 318,336 : x
  2. Step 2: Convert to fraction form
    208,960/318,336 = 318,336/x
  3. Step 3: Cross multiply
    208,960x = 318,336 × 318,336
  4. Step 4: Simplify right side
    208,960x = 101,337,808,896
  5. Step 5: Solve for x
    x = 101,337,808,896/208,960
  6. Step 6: Final answer
    x = 484,962.71

Related Problems

Find third proportional to 104,480 and 159,168
Half scale
Find third proportional to 417,920 and 636,672
Double scale
Find third proportional to 208,962 and 318,339
Similar ratio
Find third proportional to 313,440 and 477,504
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.