Home / 310,311-451,980

Finding the Third Proportional to 310,311 and 451,980

Calculator

Solution

The third proportional to 310,311 and 451,980 is: 658,326.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,311 : 451,980 = 451,980 : x
  2. Step 2: Convert to fraction form
    310,311/451,980 = 451,980/x
  3. Step 3: Cross multiply
    310,311x = 451,980 × 451,980
  4. Step 4: Simplify right side
    310,311x = 204,285,920,400
  5. Step 5: Solve for x
    x = 204,285,920,400/310,311
  6. Step 6: Final answer
    x = 658,326.39

Related Problems

Find third proportional to 155,155.50 and 225,990
Half scale
Find third proportional to 620,622 and 903,960
Double scale
Find third proportional to 310,313 and 451,983
Similar ratio
Find third proportional to 465,466.50 and 677,970
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.