Home / 134.50-287

Finding the Third Proportional to 134.50 and 287

Calculator

Solution

The third proportional to 134.50 and 287 is: 612.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    134.50 : 287 = 287 : x
  2. Step 2: Convert to fraction form
    134.50/287 = 287/x
  3. Step 3: Cross multiply
    134.50x = 287 × 287
  4. Step 4: Simplify right side
    134.50x = 82,369
  5. Step 5: Solve for x
    x = 82,369/134.50
  6. Step 6: Final answer
    x = 612.41

Related Problems

Find third proportional to 67.25 and 143.50
Half scale
Find third proportional to 269 and 574
Double scale
Find third proportional to 137 and 291
Similar ratio
Find third proportional to 201.75 and 430.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.