Home / 270-651

Finding the Third Proportional to 270 and 651

Calculator

Solution

The third proportional to 270 and 651 is: 1,569.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    270 : 651 = 651 : x
  2. Step 2: Convert to fraction form
    270/651 = 651/x
  3. Step 3: Cross multiply
    270x = 651 × 651
  4. Step 4: Simplify right side
    270x = 423,801
  5. Step 5: Solve for x
    x = 423,801/270
  6. Step 6: Final answer
    x = 1,569.63

Related Problems

Find third proportional to 135 and 325.50
Half scale
Find third proportional to 540 and 1,302
Double scale
Find third proportional to 272 and 656
Similar ratio
Find third proportional to 405 and 976.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.