Home / 217,532-306,339

Finding the Third Proportional to 217,532 and 306,339

Calculator

Solution

The third proportional to 217,532 and 306,339 is: 431,401.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,532 : 306,339 = 306,339 : x
  2. Step 2: Convert to fraction form
    217,532/306,339 = 306,339/x
  3. Step 3: Cross multiply
    217,532x = 306,339 × 306,339
  4. Step 4: Simplify right side
    217,532x = 93,843,582,921
  5. Step 5: Solve for x
    x = 93,843,582,921/217,532
  6. Step 6: Final answer
    x = 431,401.28

Related Problems

Find third proportional to 108,766 and 153,169.50
Half scale
Find third proportional to 435,064 and 612,678
Double scale
Find third proportional to 217,534 and 306,342
Similar ratio
Find third proportional to 326,298 and 459,508.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.