Home / 211,530-319,087

Finding the Third Proportional to 211,530 and 319,087

Calculator

Solution

The third proportional to 211,530 and 319,087 is: 481,333.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,530 : 319,087 = 319,087 : x
  2. Step 2: Convert to fraction form
    211,530/319,087 = 319,087/x
  3. Step 3: Cross multiply
    211,530x = 319,087 × 319,087
  4. Step 4: Simplify right side
    211,530x = 101,816,513,569
  5. Step 5: Solve for x
    x = 101,816,513,569/211,530
  6. Step 6: Final answer
    x = 481,333.68

Related Problems

Find third proportional to 105,765 and 159,543.50
Half scale
Find third proportional to 423,060 and 638,174
Double scale
Find third proportional to 211,532 and 319,090
Similar ratio
Find third proportional to 317,295 and 478,630.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.