Home / 132,945-289,218

Finding the Third Proportional to 132,945 and 289,218

Calculator

Solution

The third proportional to 132,945 and 289,218 is: 629,185.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,945 : 289,218 = 289,218 : x
  2. Step 2: Convert to fraction form
    132,945/289,218 = 289,218/x
  3. Step 3: Cross multiply
    132,945x = 289,218 × 289,218
  4. Step 4: Simplify right side
    132,945x = 83,647,051,524
  5. Step 5: Solve for x
    x = 83,647,051,524/132,945
  6. Step 6: Final answer
    x = 629,185.39

Related Problems

Find third proportional to 66,472.50 and 144,609
Half scale
Find third proportional to 265,890 and 578,436
Double scale
Find third proportional to 132,947 and 289,222
Similar ratio
Find third proportional to 199,417.50 and 433,827
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.