Home / 178,310-388,606

Finding the Third Proportional to 178,310 and 388,606

Calculator

Solution

The third proportional to 178,310 and 388,606 is: 846,921.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,310 : 388,606 = 388,606 : x
  2. Step 2: Convert to fraction form
    178,310/388,606 = 388,606/x
  3. Step 3: Cross multiply
    178,310x = 388,606 × 388,606
  4. Step 4: Simplify right side
    178,310x = 151,014,623,236
  5. Step 5: Solve for x
    x = 151,014,623,236/178,310
  6. Step 6: Final answer
    x = 846,921.78

Related Problems

Find third proportional to 89,155 and 194,303
Half scale
Find third proportional to 356,620 and 777,212
Double scale
Find third proportional to 178,312 and 388,610
Similar ratio
Find third proportional to 267,465 and 582,909
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.