Home / 181.16-389.64

Finding the Third Proportional to 181.16 and 389.64

Calculator

Solution

The third proportional to 181.16 and 389.64 is: 838.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    181.16 : 389.64 = 389.64 : x
  2. Step 2: Convert to fraction form
    181.16/389.64 = 389.64/x
  3. Step 3: Cross multiply
    181.16x = 389.64 × 389.64
  4. Step 4: Simplify right side
    181.16x = 151,816.77
  5. Step 5: Solve for x
    x = 151,816.77/181.16
  6. Step 6: Final answer
    x = 838.03

Related Problems

Find third proportional to 90.58 and 194.82
Half scale
Find third proportional to 362.32 and 779.27
Double scale
Find third proportional to 183 and 394
Similar ratio
Find third proportional to 271.74 and 584.46
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.