Home / 118,620-189,715

Finding the Third Proportional to 118,620 and 189,715

Calculator

Solution

The third proportional to 118,620 and 189,715 is: 303,420.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,620 : 189,715 = 189,715 : x
  2. Step 2: Convert to fraction form
    118,620/189,715 = 189,715/x
  3. Step 3: Cross multiply
    118,620x = 189,715 × 189,715
  4. Step 4: Simplify right side
    118,620x = 35,991,781,225
  5. Step 5: Solve for x
    x = 35,991,781,225/118,620
  6. Step 6: Final answer
    x = 303,420.85

Related Problems

Find third proportional to 59,310 and 94,857.50
Half scale
Find third proportional to 237,240 and 379,430
Double scale
Find third proportional to 118,622 and 189,718
Similar ratio
Find third proportional to 177,930 and 284,572.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.