Home / 200,278-310,002

Finding the Third Proportional to 200,278 and 310,002

Calculator

Solution

The third proportional to 200,278 and 310,002 is: 479,839.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,278 : 310,002 = 310,002 : x
  2. Step 2: Convert to fraction form
    200,278/310,002 = 310,002/x
  3. Step 3: Cross multiply
    200,278x = 310,002 × 310,002
  4. Step 4: Simplify right side
    200,278x = 96,101,240,004
  5. Step 5: Solve for x
    x = 96,101,240,004/200,278
  6. Step 6: Final answer
    x = 479,839.22

Related Problems

Find third proportional to 100,139 and 155,001
Half scale
Find third proportional to 400,556 and 620,004
Double scale
Find third proportional to 200,280 and 310,005
Similar ratio
Find third proportional to 300,417 and 465,003
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.