Home / 81,915-175,218

Finding the Third Proportional to 81,915 and 175,218

Calculator

Solution

The third proportional to 81,915 and 175,218 is: 374,795.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,915 : 175,218 = 175,218 : x
  2. Step 2: Convert to fraction form
    81,915/175,218 = 175,218/x
  3. Step 3: Cross multiply
    81,915x = 175,218 × 175,218
  4. Step 4: Simplify right side
    81,915x = 30,701,347,524
  5. Step 5: Solve for x
    x = 30,701,347,524/81,915
  6. Step 6: Final answer
    x = 374,795.18

Related Problems

Find third proportional to 40,957.50 and 87,609
Half scale
Find third proportional to 163,830 and 350,436
Double scale
Find third proportional to 81,917 and 175,222
Similar ratio
Find third proportional to 122,872.50 and 262,827
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.