Home / 172,143-371,478

Finding the Third Proportional to 172,143 and 371,478

Calculator

Solution

The third proportional to 172,143 and 371,478 is: 801,635.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,143 : 371,478 = 371,478 : x
  2. Step 2: Convert to fraction form
    172,143/371,478 = 371,478/x
  3. Step 3: Cross multiply
    172,143x = 371,478 × 371,478
  4. Step 4: Simplify right side
    172,143x = 137,995,904,484
  5. Step 5: Solve for x
    x = 137,995,904,484/172,143
  6. Step 6: Final answer
    x = 801,635.29

Related Problems

Find third proportional to 86,071.50 and 185,739
Half scale
Find third proportional to 344,286 and 742,956
Double scale
Find third proportional to 172,145 and 371,482
Similar ratio
Find third proportional to 258,214.50 and 557,217
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.