Home / 205,097-310,479

Finding the Third Proportional to 205,097 and 310,479

Calculator

Solution

The third proportional to 205,097 and 310,479 is: 470,007.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,097 : 310,479 = 310,479 : x
  2. Step 2: Convert to fraction form
    205,097/310,479 = 310,479/x
  3. Step 3: Cross multiply
    205,097x = 310,479 × 310,479
  4. Step 4: Simplify right side
    205,097x = 96,397,209,441
  5. Step 5: Solve for x
    x = 96,397,209,441/205,097
  6. Step 6: Final answer
    x = 470,007.90

Related Problems

Find third proportional to 102,548.50 and 155,239.50
Half scale
Find third proportional to 410,194 and 620,958
Double scale
Find third proportional to 205,099 and 310,482
Similar ratio
Find third proportional to 307,645.50 and 465,718.50
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.