Home / 351.75-384.75

Finding the Third Proportional to 351.75 and 384.75

Calculator

Solution

The third proportional to 351.75 and 384.75 is: 420.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    351.75 : 384.75 = 384.75 : x
  2. Step 2: Convert to fraction form
    351.75/384.75 = 384.75/x
  3. Step 3: Cross multiply
    351.75x = 384.75 × 384.75
  4. Step 4: Simplify right side
    351.75x = 148,032.56
  5. Step 5: Solve for x
    x = 148,032.56/351.75
  6. Step 6: Final answer
    x = 420.85

Related Problems

Find third proportional to 175.88 and 192.38
Half scale
Find third proportional to 703.50 and 769.50
Double scale
Find third proportional to 354 and 387
Similar ratio
Find third proportional to 527.63 and 577.13
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.