Home / 426-477

Finding the Third Proportional to 426 and 477

Calculator

Solution

The third proportional to 426 and 477 is: 534.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    426 : 477 = 477 : x
  2. Step 2: Convert to fraction form
    426/477 = 477/x
  3. Step 3: Cross multiply
    426x = 477 × 477
  4. Step 4: Simplify right side
    426x = 227,529
  5. Step 5: Solve for x
    x = 227,529/426
  6. Step 6: Final answer
    x = 534.11

Related Problems

Find third proportional to 213 and 238.50
Half scale
Find third proportional to 852 and 954
Double scale
Find third proportional to 428 and 479
Similar ratio
Find third proportional to 639 and 715.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.