Home / 377.81-610.69

Finding the Third Proportional to 377.81 and 610.69

Calculator

Solution

The third proportional to 377.81 and 610.69 is: 987.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    377.81 : 610.69 = 610.69 : x
  2. Step 2: Convert to fraction form
    377.81/610.69 = 610.69/x
  3. Step 3: Cross multiply
    377.81x = 610.69 × 610.69
  4. Step 4: Simplify right side
    377.81x = 372,939.22
  5. Step 5: Solve for x
    x = 372,939.22/377.81
  6. Step 6: Final answer
    x = 987.10

Related Problems

Find third proportional to 188.91 and 305.34
Half scale
Find third proportional to 755.63 and 1,221.38
Double scale
Find third proportional to 380 and 614
Similar ratio
Find third proportional to 566.72 and 916.03
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.62) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.