Home / 217,531-306,337.50

Finding the Third Proportional to 217,531 and 306,337.50

Calculator

Solution

The third proportional to 217,531 and 306,337.50 is: 431,399.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,531 : 306,337.50 = 306,337.50 : x
  2. Step 2: Convert to fraction form
    217,531/306,337.50 = 306,337.50/x
  3. Step 3: Cross multiply
    217,531x = 306,337.50 × 306,337.50
  4. Step 4: Simplify right side
    217,531x = 93,842,663,906.25
  5. Step 5: Solve for x
    x = 93,842,663,906.25/217,531
  6. Step 6: Final answer
    x = 431,399.04

Related Problems

Find third proportional to 108,765.50 and 153,168.75
Half scale
Find third proportional to 435,062 and 612,675
Double scale
Find third proportional to 217,533 and 306,340
Similar ratio
Find third proportional to 326,296.50 and 459,506.25
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.