Home / 76,218-169,920

Finding the Third Proportional to 76,218 and 169,920

Calculator

Solution

The third proportional to 76,218 and 169,920 is: 378,818.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,218 : 169,920 = 169,920 : x
  2. Step 2: Convert to fraction form
    76,218/169,920 = 169,920/x
  3. Step 3: Cross multiply
    76,218x = 169,920 × 169,920
  4. Step 4: Simplify right side
    76,218x = 28,872,806,400
  5. Step 5: Solve for x
    x = 28,872,806,400/76,218
  6. Step 6: Final answer
    x = 378,818.74

Related Problems

Find third proportional to 38,109 and 84,960
Half scale
Find third proportional to 152,436 and 339,840
Double scale
Find third proportional to 76,220 and 169,924
Similar ratio
Find third proportional to 114,327 and 254,880
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.