Home / 290,024-408,426

Finding the Third Proportional to 290,024 and 408,426

Calculator

Solution

The third proportional to 290,024 and 408,426 is: 575,165.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,024 : 408,426 = 408,426 : x
  2. Step 2: Convert to fraction form
    290,024/408,426 = 408,426/x
  3. Step 3: Cross multiply
    290,024x = 408,426 × 408,426
  4. Step 4: Simplify right side
    290,024x = 166,811,797,476
  5. Step 5: Solve for x
    x = 166,811,797,476/290,024
  6. Step 6: Final answer
    x = 575,165.49

Related Problems

Find third proportional to 145,012 and 204,213
Half scale
Find third proportional to 580,048 and 816,852
Double scale
Find third proportional to 290,026 and 408,429
Similar ratio
Find third proportional to 435,036 and 612,639
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.