Home / 138,078-302,000

Finding the Third Proportional to 138,078 and 302,000

Calculator

Solution

The third proportional to 138,078 and 302,000 is: 660,525.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,078 : 302,000 = 302,000 : x
  2. Step 2: Convert to fraction form
    138,078/302,000 = 302,000/x
  3. Step 3: Cross multiply
    138,078x = 302,000 × 302,000
  4. Step 4: Simplify right side
    138,078x = 91,204,000,000
  5. Step 5: Solve for x
    x = 91,204,000,000/138,078
  6. Step 6: Final answer
    x = 660,525.21

Related Problems

Find third proportional to 69,039 and 151,000
Half scale
Find third proportional to 276,156 and 604,000
Double scale
Find third proportional to 138,080 and 302,004
Similar ratio
Find third proportional to 207,117 and 453,000
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.