Home / 138,276-302,472

Finding the Third Proportional to 138,276 and 302,472

Calculator

Solution

The third proportional to 138,276 and 302,472 is: 661,642.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,276 : 302,472 = 302,472 : x
  2. Step 2: Convert to fraction form
    138,276/302,472 = 302,472/x
  3. Step 3: Cross multiply
    138,276x = 302,472 × 302,472
  4. Step 4: Simplify right side
    138,276x = 91,489,310,784
  5. Step 5: Solve for x
    x = 91,489,310,784/138,276
  6. Step 6: Final answer
    x = 661,642.73

Related Problems

Find third proportional to 69,138 and 151,236
Half scale
Find third proportional to 276,552 and 604,944
Double scale
Find third proportional to 138,278 and 302,476
Similar ratio
Find third proportional to 207,414 and 453,708
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.