Home / 179-390.25

Finding the Third Proportional to 179 and 390.25

Calculator

Solution

The third proportional to 179 and 390.25 is: 850.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    179 : 390.25 = 390.25 : x
  2. Step 2: Convert to fraction form
    179/390.25 = 390.25/x
  3. Step 3: Cross multiply
    179x = 390.25 × 390.25
  4. Step 4: Simplify right side
    179x = 152,295.06
  5. Step 5: Solve for x
    x = 152,295.06/179
  6. Step 6: Final answer
    x = 850.81

Related Problems

Find third proportional to 89.50 and 195.13
Half scale
Find third proportional to 358 and 780.50
Double scale
Find third proportional to 181 and 395
Similar ratio
Find third proportional to 268.50 and 585.38
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.