Home / 508.50-818.25

Finding the Third Proportional to 508.50 and 818.25

Calculator

Solution

The third proportional to 508.50 and 818.25 is: 1,316.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    508.50 : 818.25 = 818.25 : x
  2. Step 2: Convert to fraction form
    508.50/818.25 = 818.25/x
  3. Step 3: Cross multiply
    508.50x = 818.25 × 818.25
  4. Step 4: Simplify right side
    508.50x = 669,533.06
  5. Step 5: Solve for x
    x = 669,533.06/508.50
  6. Step 6: Final answer
    x = 1,316.68

Related Problems

Find third proportional to 254.25 and 409.13
Half scale
Find third proportional to 1,017 and 1,636.50
Double scale
Find third proportional to 511 and 821
Similar ratio
Find third proportional to 762.75 and 1,227.38
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.