Home / 187.03-319.78

Finding the Third Proportional to 187.03 and 319.78

Calculator

Solution

The third proportional to 187.03 and 319.78 is: 546.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    187.03 : 319.78 = 319.78 : x
  2. Step 2: Convert to fraction form
    187.03/319.78 = 319.78/x
  3. Step 3: Cross multiply
    187.03x = 319.78 × 319.78
  4. Step 4: Simplify right side
    187.03x = 102,260.05
  5. Step 5: Solve for x
    x = 102,260.05/187.03
  6. Step 6: Final answer
    x = 546.75

Related Problems

Find third proportional to 93.52 and 159.89
Half scale
Find third proportional to 374.06 and 639.56
Double scale
Find third proportional to 189 and 323
Similar ratio
Find third proportional to 280.55 and 479.67
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.71) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.