Home / 371.50-669

Finding the Third Proportional to 371.50 and 669

Calculator

Solution

The third proportional to 371.50 and 669 is: 1,204.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    371.50 : 669 = 669 : x
  2. Step 2: Convert to fraction form
    371.50/669 = 669/x
  3. Step 3: Cross multiply
    371.50x = 669 × 669
  4. Step 4: Simplify right side
    371.50x = 447,561
  5. Step 5: Solve for x
    x = 447,561/371.50
  6. Step 6: Final answer
    x = 1,204.74

Related Problems

Find third proportional to 185.75 and 334.50
Half scale
Find third proportional to 743 and 1,338
Double scale
Find third proportional to 374 and 673
Similar ratio
Find third proportional to 557.25 and 1,003.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.80) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.