Home / 132,851-287,409

Finding the Third Proportional to 132,851 and 287,409

Calculator

Solution

The third proportional to 132,851 and 287,409 is: 621,778.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,851 : 287,409 = 287,409 : x
  2. Step 2: Convert to fraction form
    132,851/287,409 = 287,409/x
  3. Step 3: Cross multiply
    132,851x = 287,409 × 287,409
  4. Step 4: Simplify right side
    132,851x = 82,603,933,281
  5. Step 5: Solve for x
    x = 82,603,933,281/132,851
  6. Step 6: Final answer
    x = 621,778.78

Related Problems

Find third proportional to 66,425.50 and 143,704.50
Half scale
Find third proportional to 265,702 and 574,818
Double scale
Find third proportional to 132,853 and 287,413
Similar ratio
Find third proportional to 199,276.50 and 431,113.50
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.