Home / 177,912-388,665

Finding the Third Proportional to 177,912 and 388,665

Calculator

Solution

The third proportional to 177,912 and 388,665 is: 849,074.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,912 : 388,665 = 388,665 : x
  2. Step 2: Convert to fraction form
    177,912/388,665 = 388,665/x
  3. Step 3: Cross multiply
    177,912x = 388,665 × 388,665
  4. Step 4: Simplify right side
    177,912x = 151,060,482,225
  5. Step 5: Solve for x
    x = 151,060,482,225/177,912
  6. Step 6: Final answer
    x = 849,074.16

Related Problems

Find third proportional to 88,956 and 194,332.50
Half scale
Find third proportional to 355,824 and 777,330
Double scale
Find third proportional to 177,914 and 388,669
Similar ratio
Find third proportional to 266,868 and 582,997.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.