Home / 188,514-390,149

Finding the Third Proportional to 188,514 and 390,149

Calculator

Solution

The third proportional to 188,514 and 390,149 is: 807,453.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,514 : 390,149 = 390,149 : x
  2. Step 2: Convert to fraction form
    188,514/390,149 = 390,149/x
  3. Step 3: Cross multiply
    188,514x = 390,149 × 390,149
  4. Step 4: Simplify right side
    188,514x = 152,216,242,201
  5. Step 5: Solve for x
    x = 152,216,242,201/188,514
  6. Step 6: Final answer
    x = 807,453.25

Related Problems

Find third proportional to 94,257 and 195,074.50
Half scale
Find third proportional to 377,028 and 780,298
Double scale
Find third proportional to 188,516 and 390,153
Similar ratio
Find third proportional to 282,771 and 585,223.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.