Home / 291,204-438,858

Finding the Third Proportional to 291,204 and 438,858

Calculator

Solution

The third proportional to 291,204 and 438,858 is: 661,379.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,204 : 438,858 = 438,858 : x
  2. Step 2: Convert to fraction form
    291,204/438,858 = 438,858/x
  3. Step 3: Cross multiply
    291,204x = 438,858 × 438,858
  4. Step 4: Simplify right side
    291,204x = 192,596,344,164
  5. Step 5: Solve for x
    x = 192,596,344,164/291,204
  6. Step 6: Final answer
    x = 661,379.46

Related Problems

Find third proportional to 145,602 and 219,429
Half scale
Find third proportional to 582,408 and 877,716
Double scale
Find third proportional to 291,206 and 438,861
Similar ratio
Find third proportional to 436,806 and 658,287
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.