Home / 121,668-249,168

Finding the Third Proportional to 121,668 and 249,168

Calculator

Solution

The third proportional to 121,668 and 249,168 is: 510,279.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,668 : 249,168 = 249,168 : x
  2. Step 2: Convert to fraction form
    121,668/249,168 = 249,168/x
  3. Step 3: Cross multiply
    121,668x = 249,168 × 249,168
  4. Step 4: Simplify right side
    121,668x = 62,084,692,224
  5. Step 5: Solve for x
    x = 62,084,692,224/121,668
  6. Step 6: Final answer
    x = 510,279.55

Related Problems

Find third proportional to 60,834 and 124,584
Half scale
Find third proportional to 243,336 and 498,336
Double scale
Find third proportional to 121,670 and 249,172
Similar ratio
Find third proportional to 182,502 and 373,752
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.