Home / 375-551

Finding the Third Proportional to 375 and 551

Calculator

Solution

The third proportional to 375 and 551 is: 809.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    375 : 551 = 551 : x
  2. Step 2: Convert to fraction form
    375/551 = 551/x
  3. Step 3: Cross multiply
    375x = 551 × 551
  4. Step 4: Simplify right side
    375x = 303,601
  5. Step 5: Solve for x
    x = 303,601/375
  6. Step 6: Final answer
    x = 809.60

Related Problems

Find third proportional to 187.50 and 275.50
Half scale
Find third proportional to 750 and 1,102
Double scale
Find third proportional to 377 and 554
Similar ratio
Find third proportional to 562.50 and 826.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.