Home / 136,200-288,888

Finding the Third Proportional to 136,200 and 288,888

Calculator

Solution

The third proportional to 136,200 and 288,888 is: 612,747.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,200 : 288,888 = 288,888 : x
  2. Step 2: Convert to fraction form
    136,200/288,888 = 288,888/x
  3. Step 3: Cross multiply
    136,200x = 288,888 × 288,888
  4. Step 4: Simplify right side
    136,200x = 83,456,276,544
  5. Step 5: Solve for x
    x = 83,456,276,544/136,200
  6. Step 6: Final answer
    x = 612,747.99

Related Problems

Find third proportional to 68,100 and 144,444
Half scale
Find third proportional to 272,400 and 577,776
Double scale
Find third proportional to 136,202 and 288,892
Similar ratio
Find third proportional to 204,300 and 433,332
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.