Home / 131,448-287,217

Finding the Third Proportional to 131,448 and 287,217

Calculator

Solution

The third proportional to 131,448 and 287,217 is: 627,575.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,448 : 287,217 = 287,217 : x
  2. Step 2: Convert to fraction form
    131,448/287,217 = 287,217/x
  3. Step 3: Cross multiply
    131,448x = 287,217 × 287,217
  4. Step 4: Simplify right side
    131,448x = 82,493,605,089
  5. Step 5: Solve for x
    x = 82,493,605,089/131,448
  6. Step 6: Final answer
    x = 627,575.96

Related Problems

Find third proportional to 65,724 and 143,608.50
Half scale
Find third proportional to 262,896 and 574,434
Double scale
Find third proportional to 131,450 and 287,221
Similar ratio
Find third proportional to 197,172 and 430,825.50
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.