Home / 145,625-311,494

Finding the Third Proportional to 145,625 and 311,494

Calculator

Solution

The third proportional to 145,625 and 311,494 is: 666,290.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,625 : 311,494 = 311,494 : x
  2. Step 2: Convert to fraction form
    145,625/311,494 = 311,494/x
  3. Step 3: Cross multiply
    145,625x = 311,494 × 311,494
  4. Step 4: Simplify right side
    145,625x = 97,028,512,036
  5. Step 5: Solve for x
    x = 97,028,512,036/145,625
  6. Step 6: Final answer
    x = 666,290.21

Related Problems

Find third proportional to 72,812.50 and 155,747
Half scale
Find third proportional to 291,250 and 622,988
Double scale
Find third proportional to 145,627 and 311,498
Similar ratio
Find third proportional to 218,437.50 and 467,241
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.