Home / 144,630-310,988

Finding the Third Proportional to 144,630 and 310,988

Calculator

Solution

The third proportional to 144,630 and 310,988 is: 668,696.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,630 : 310,988 = 310,988 : x
  2. Step 2: Convert to fraction form
    144,630/310,988 = 310,988/x
  3. Step 3: Cross multiply
    144,630x = 310,988 × 310,988
  4. Step 4: Simplify right side
    144,630x = 96,713,536,144
  5. Step 5: Solve for x
    x = 96,713,536,144/144,630
  6. Step 6: Final answer
    x = 668,696.23

Related Problems

Find third proportional to 72,315 and 155,494
Half scale
Find third proportional to 289,260 and 621,976
Double scale
Find third proportional to 144,632 and 310,992
Similar ratio
Find third proportional to 216,945 and 466,482
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.