Home / 247,968-318,384

Finding the Third Proportional to 247,968 and 318,384

Calculator

Solution

The third proportional to 247,968 and 318,384 is: 408,796.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,968 : 318,384 = 318,384 : x
  2. Step 2: Convert to fraction form
    247,968/318,384 = 318,384/x
  3. Step 3: Cross multiply
    247,968x = 318,384 × 318,384
  4. Step 4: Simplify right side
    247,968x = 101,368,371,456
  5. Step 5: Solve for x
    x = 101,368,371,456/247,968
  6. Step 6: Final answer
    x = 408,796.18

Related Problems

Find third proportional to 123,984 and 159,192
Half scale
Find third proportional to 495,936 and 636,768
Double scale
Find third proportional to 247,970 and 318,387
Similar ratio
Find third proportional to 371,952 and 477,576
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.28) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.