Home / 273,164-428,515

Finding the Third Proportional to 273,164 and 428,515

Calculator

Solution

The third proportional to 273,164 and 428,515 is: 672,215.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,164 : 428,515 = 428,515 : x
  2. Step 2: Convert to fraction form
    273,164/428,515 = 428,515/x
  3. Step 3: Cross multiply
    273,164x = 428,515 × 428,515
  4. Step 4: Simplify right side
    273,164x = 183,625,105,225
  5. Step 5: Solve for x
    x = 183,625,105,225/273,164
  6. Step 6: Final answer
    x = 672,215.61

Related Problems

Find third proportional to 136,582 and 214,257.50
Half scale
Find third proportional to 546,328 and 857,030
Double scale
Find third proportional to 273,166 and 428,518
Similar ratio
Find third proportional to 409,746 and 642,772.50
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.