Home / 449.25-980.25

Finding the Third Proportional to 449.25 and 980.25

Calculator

Solution

The third proportional to 449.25 and 980.25 is: 2,138.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    449.25 : 980.25 = 980.25 : x
  2. Step 2: Convert to fraction form
    449.25/980.25 = 980.25/x
  3. Step 3: Cross multiply
    449.25x = 980.25 × 980.25
  4. Step 4: Simplify right side
    449.25x = 960,890.06
  5. Step 5: Solve for x
    x = 960,890.06/449.25
  6. Step 6: Final answer
    x = 2,138.88

Related Problems

Find third proportional to 224.63 and 490.13
Half scale
Find third proportional to 898.50 and 1,960.50
Double scale
Find third proportional to 451 and 985
Similar ratio
Find third proportional to 673.88 and 1,470.38
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.