Home / 214,145.60-321,218.40-114,612.80

Finding the Fourth Proportional to 214,145.60, 321,218.40 and 114,612.80

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Solution

The fourth proportional to 214,145.60, 321,218.40 and 114,612.80 is: 171,919.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,145.60 : 321,218.40 = 114,612.80 : x
  2. Step 2: Convert to fraction form
    214,145.60/321,218.40 = 114,612.80/x
  3. Step 3: Cross multiply
    214,145.60x = 321,218.40 × 114,612.80
  4. Step 4: Simplify right side
    214,145.60x = 36,815,740,235.52
  5. Step 5: Solve for x
    x = 36,815,740,235.52/214,145.60
  6. Step 6: Final answer
    x = 171,919.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.