Home / 348.50-644.75

Finding the Third Proportional to 348.50 and 644.75

Calculator

Solution

The third proportional to 348.50 and 644.75 is: 1,192.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    348.50 : 644.75 = 644.75 : x
  2. Step 2: Convert to fraction form
    348.50/644.75 = 644.75/x
  3. Step 3: Cross multiply
    348.50x = 644.75 × 644.75
  4. Step 4: Simplify right side
    348.50x = 415,702.56
  5. Step 5: Solve for x
    x = 415,702.56/348.50
  6. Step 6: Final answer
    x = 1,192.83

Related Problems

Find third proportional to 174.25 and 322.38
Half scale
Find third proportional to 697 and 1,289.50
Double scale
Find third proportional to 351 and 648
Similar ratio
Find third proportional to 522.75 and 967.13
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.85) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.