Home / 66,472-143,507

Finding the Third Proportional to 66,472 and 143,507

Calculator

Solution

The third proportional to 66,472 and 143,507 is: 309,818.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,472 : 143,507 = 143,507 : x
  2. Step 2: Convert to fraction form
    66,472/143,507 = 143,507/x
  3. Step 3: Cross multiply
    66,472x = 143,507 × 143,507
  4. Step 4: Simplify right side
    66,472x = 20,594,259,049
  5. Step 5: Solve for x
    x = 20,594,259,049/66,472
  6. Step 6: Final answer
    x = 309,818.56

Related Problems

Find third proportional to 33,236 and 71,753.50
Half scale
Find third proportional to 132,944 and 287,014
Double scale
Find third proportional to 66,474 and 143,511
Similar ratio
Find third proportional to 99,708 and 215,260.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.