Home / 288,602-393,159

Finding the Third Proportional to 288,602 and 393,159

Calculator

Solution

The third proportional to 288,602 and 393,159 is: 535,595.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,602 : 393,159 = 393,159 : x
  2. Step 2: Convert to fraction form
    288,602/393,159 = 393,159/x
  3. Step 3: Cross multiply
    288,602x = 393,159 × 393,159
  4. Step 4: Simplify right side
    288,602x = 154,573,999,281
  5. Step 5: Solve for x
    x = 154,573,999,281/288,602
  6. Step 6: Final answer
    x = 535,595.73

Related Problems

Find third proportional to 144,301 and 196,579.50
Half scale
Find third proportional to 577,204 and 786,318
Double scale
Find third proportional to 288,604 and 393,162
Similar ratio
Find third proportional to 432,903 and 589,738.50
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.