Home / 216,614-324,921

Finding the Third Proportional to 216,614 and 324,921

Calculator

Solution

The third proportional to 216,614 and 324,921 is: 487,381.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,614 : 324,921 = 324,921 : x
  2. Step 2: Convert to fraction form
    216,614/324,921 = 324,921/x
  3. Step 3: Cross multiply
    216,614x = 324,921 × 324,921
  4. Step 4: Simplify right side
    216,614x = 105,573,656,241
  5. Step 5: Solve for x
    x = 105,573,656,241/216,614
  6. Step 6: Final answer
    x = 487,381.50

Related Problems

Find third proportional to 108,307 and 162,460.50
Half scale
Find third proportional to 433,228 and 649,842
Double scale
Find third proportional to 216,616 and 324,924
Similar ratio
Find third proportional to 324,921 and 487,381.50
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.