Home / 178,000-388,822

Finding the Third Proportional to 178,000 and 388,822

Calculator

Solution

The third proportional to 178,000 and 388,822 is: 849,340.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,000 : 388,822 = 388,822 : x
  2. Step 2: Convert to fraction form
    178,000/388,822 = 388,822/x
  3. Step 3: Cross multiply
    178,000x = 388,822 × 388,822
  4. Step 4: Simplify right side
    178,000x = 151,182,547,684
  5. Step 5: Solve for x
    x = 151,182,547,684/178,000
  6. Step 6: Final answer
    x = 849,340.16

Related Problems

Find third proportional to 89,000 and 194,411
Half scale
Find third proportional to 356,000 and 777,644
Double scale
Find third proportional to 178,002 and 388,826
Similar ratio
Find third proportional to 267,000 and 583,233
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.