Home / 311,573.25-488,139.75

Finding the Third Proportional to 311,573.25 and 488,139.75

Calculator

Solution

The third proportional to 311,573.25 and 488,139.75 is: 764,765.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,573.25 : 488,139.75 = 488,139.75 : x
  2. Step 2: Convert to fraction form
    311,573.25/488,139.75 = 488,139.75/x
  3. Step 3: Cross multiply
    311,573.25x = 488,139.75 × 488,139.75
  4. Step 4: Simplify right side
    311,573.25x = 238,280,415,530.06
  5. Step 5: Solve for x
    x = 238,280,415,530.06/311,573.25
  6. Step 6: Final answer
    x = 764,765.32

Related Problems

Find third proportional to 155,786.63 and 244,069.88
Half scale
Find third proportional to 623,146.50 and 976,279.50
Double scale
Find third proportional to 311,575 and 488,143
Similar ratio
Find third proportional to 467,359.88 and 732,209.63
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.