Home / 220,498-478,336

Finding the Third Proportional to 220,498 and 478,336

Calculator

Solution

The third proportional to 220,498 and 478,336 is: 1,037,675.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,498 : 478,336 = 478,336 : x
  2. Step 2: Convert to fraction form
    220,498/478,336 = 478,336/x
  3. Step 3: Cross multiply
    220,498x = 478,336 × 478,336
  4. Step 4: Simplify right side
    220,498x = 228,805,328,896
  5. Step 5: Solve for x
    x = 228,805,328,896/220,498
  6. Step 6: Final answer
    x = 1,037,675.30

Related Problems

Find third proportional to 110,249 and 239,168
Half scale
Find third proportional to 440,996 and 956,672
Double scale
Find third proportional to 220,500 and 478,340
Similar ratio
Find third proportional to 330,747 and 717,504
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.