Home / 145,149-213,453

Finding the Third Proportional to 145,149 and 213,453

Calculator

Solution

The third proportional to 145,149 and 213,453 is: 313,899.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,149 : 213,453 = 213,453 : x
  2. Step 2: Convert to fraction form
    145,149/213,453 = 213,453/x
  3. Step 3: Cross multiply
    145,149x = 213,453 × 213,453
  4. Step 4: Simplify right side
    145,149x = 45,562,183,209
  5. Step 5: Solve for x
    x = 45,562,183,209/145,149
  6. Step 6: Final answer
    x = 313,899.39

Related Problems

Find third proportional to 72,574.50 and 106,726.50
Half scale
Find third proportional to 290,298 and 426,906
Double scale
Find third proportional to 145,151 and 213,456
Similar ratio
Find third proportional to 217,723.50 and 320,179.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.