Home / 120,474-254,511

Finding the Third Proportional to 120,474 and 254,511

Calculator

Solution

The third proportional to 120,474 and 254,511 is: 537,674.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,474 : 254,511 = 254,511 : x
  2. Step 2: Convert to fraction form
    120,474/254,511 = 254,511/x
  3. Step 3: Cross multiply
    120,474x = 254,511 × 254,511
  4. Step 4: Simplify right side
    120,474x = 64,775,849,121
  5. Step 5: Solve for x
    x = 64,775,849,121/120,474
  6. Step 6: Final answer
    x = 537,674.93

Related Problems

Find third proportional to 60,237 and 127,255.50
Half scale
Find third proportional to 240,948 and 509,022
Double scale
Find third proportional to 120,476 and 254,515
Similar ratio
Find third proportional to 180,711 and 381,766.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.