Home / 219,318-478,299

Finding the Third Proportional to 219,318 and 478,299

Calculator

Solution

The third proportional to 219,318 and 478,299 is: 1,043,096.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,318 : 478,299 = 478,299 : x
  2. Step 2: Convert to fraction form
    219,318/478,299 = 478,299/x
  3. Step 3: Cross multiply
    219,318x = 478,299 × 478,299
  4. Step 4: Simplify right side
    219,318x = 228,769,933,401
  5. Step 5: Solve for x
    x = 228,769,933,401/219,318
  6. Step 6: Final answer
    x = 1,043,096.93

Related Problems

Find third proportional to 109,659 and 239,149.50
Half scale
Find third proportional to 438,636 and 956,598
Double scale
Find third proportional to 219,320 and 478,303
Similar ratio
Find third proportional to 328,977 and 717,448.50
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.