Home / 198,370-430,436

Finding the Third Proportional to 198,370 and 430,436

Calculator

Solution

The third proportional to 198,370 and 430,436 is: 933,987.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,370 : 430,436 = 430,436 : x
  2. Step 2: Convert to fraction form
    198,370/430,436 = 430,436/x
  3. Step 3: Cross multiply
    198,370x = 430,436 × 430,436
  4. Step 4: Simplify right side
    198,370x = 185,275,150,096
  5. Step 5: Solve for x
    x = 185,275,150,096/198,370
  6. Step 6: Final answer
    x = 933,987.75

Related Problems

Find third proportional to 99,185 and 215,218
Half scale
Find third proportional to 396,740 and 860,872
Double scale
Find third proportional to 198,372 and 430,440
Similar ratio
Find third proportional to 297,555 and 645,654
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.