Home / 217,460-306,228

Finding the Third Proportional to 217,460 and 306,228

Calculator

Solution

The third proportional to 217,460 and 306,228 is: 431,231.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,460 : 306,228 = 306,228 : x
  2. Step 2: Convert to fraction form
    217,460/306,228 = 306,228/x
  3. Step 3: Cross multiply
    217,460x = 306,228 × 306,228
  4. Step 4: Simplify right side
    217,460x = 93,775,587,984
  5. Step 5: Solve for x
    x = 93,775,587,984/217,460
  6. Step 6: Final answer
    x = 431,231.44

Related Problems

Find third proportional to 108,730 and 153,114
Half scale
Find third proportional to 434,920 and 612,456
Double scale
Find third proportional to 217,462 and 306,231
Similar ratio
Find third proportional to 326,190 and 459,342
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.