Home / 178,430-242,211

Finding the Third Proportional to 178,430 and 242,211

Calculator

Solution

The third proportional to 178,430 and 242,211 is: 328,790.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,430 : 242,211 = 242,211 : x
  2. Step 2: Convert to fraction form
    178,430/242,211 = 242,211/x
  3. Step 3: Cross multiply
    178,430x = 242,211 × 242,211
  4. Step 4: Simplify right side
    178,430x = 58,666,168,521
  5. Step 5: Solve for x
    x = 58,666,168,521/178,430
  6. Step 6: Final answer
    x = 328,790.95

Related Problems

Find third proportional to 89,215 and 121,105.50
Half scale
Find third proportional to 356,860 and 484,422
Double scale
Find third proportional to 178,432 and 242,214
Similar ratio
Find third proportional to 267,645 and 363,316.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.