Home / 138,234-213,444

Finding the Third Proportional to 138,234 and 213,444

Calculator

Solution

The third proportional to 138,234 and 213,444 is: 329,574.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,234 : 213,444 = 213,444 : x
  2. Step 2: Convert to fraction form
    138,234/213,444 = 213,444/x
  3. Step 3: Cross multiply
    138,234x = 213,444 × 213,444
  4. Step 4: Simplify right side
    138,234x = 45,558,341,136
  5. Step 5: Solve for x
    x = 45,558,341,136/138,234
  6. Step 6: Final answer
    x = 329,574.06

Related Problems

Find third proportional to 69,117 and 106,722
Half scale
Find third proportional to 276,468 and 426,888
Double scale
Find third proportional to 138,236 and 213,447
Similar ratio
Find third proportional to 207,351 and 320,166
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.