Home / 227,841.20-312,137.26-219,322.40

Finding the Fourth Proportional to 227,841.20, 312,137.26 and 219,322.40

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Solution

The fourth proportional to 227,841.20, 312,137.26 and 219,322.40 is: 300,466.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,841.20 : 312,137.26 = 219,322.40 : x
  2. Step 2: Convert to fraction form
    227,841.20/312,137.26 = 219,322.40/x
  3. Step 3: Cross multiply
    227,841.20x = 312,137.26 × 219,322.40
  4. Step 4: Simplify right side
    227,841.20x = 68,458,692,992.62
  5. Step 5: Solve for x
    x = 68,458,692,992.62/227,841.20
  6. Step 6: Final answer
    x = 300,466.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.