Home / 288,608-393,168

Finding the Third Proportional to 288,608 and 393,168

Calculator

Solution

The third proportional to 288,608 and 393,168 is: 535,609.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,608 : 393,168 = 393,168 : x
  2. Step 2: Convert to fraction form
    288,608/393,168 = 393,168/x
  3. Step 3: Cross multiply
    288,608x = 393,168 × 393,168
  4. Step 4: Simplify right side
    288,608x = 154,581,076,224
  5. Step 5: Solve for x
    x = 154,581,076,224/288,608
  6. Step 6: Final answer
    x = 535,609.12

Related Problems

Find third proportional to 144,304 and 196,584
Half scale
Find third proportional to 577,216 and 786,336
Double scale
Find third proportional to 288,610 and 393,171
Similar ratio
Find third proportional to 432,912 and 589,752
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.