Home / 66,448-140,402

Finding the Third Proportional to 66,448 and 140,402

Calculator

Solution

The third proportional to 66,448 and 140,402 is: 296,663.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,448 : 140,402 = 140,402 : x
  2. Step 2: Convert to fraction form
    66,448/140,402 = 140,402/x
  3. Step 3: Cross multiply
    66,448x = 140,402 × 140,402
  4. Step 4: Simplify right side
    66,448x = 19,712,721,604
  5. Step 5: Solve for x
    x = 19,712,721,604/66,448
  6. Step 6: Final answer
    x = 296,663.88

Related Problems

Find third proportional to 33,224 and 70,201
Half scale
Find third proportional to 132,896 and 280,804
Double scale
Find third proportional to 66,450 and 140,406
Similar ratio
Find third proportional to 99,672 and 210,603
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.