Home / 339.38-477

Finding the Third Proportional to 339.38 and 477

Calculator

Solution

The third proportional to 339.38 and 477 is: 670.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    339.38 : 477 = 477 : x
  2. Step 2: Convert to fraction form
    339.38/477 = 477/x
  3. Step 3: Cross multiply
    339.38x = 477 × 477
  4. Step 4: Simplify right side
    339.38x = 227,529
  5. Step 5: Solve for x
    x = 227,529/339.38
  6. Step 6: Final answer
    x = 670.44

Related Problems

Find third proportional to 169.69 and 238.50
Half scale
Find third proportional to 678.75 and 954
Double scale
Find third proportional to 341 and 480
Similar ratio
Find third proportional to 509.06 and 715.50
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.