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Finding the Fourth Proportional to 217,467.80, 326,857.80 and 188,599.40

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Solution

The fourth proportional to 217,467.80, 326,857.80 and 188,599.40 is: 283,468.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,467.80 : 326,857.80 = 188,599.40 : x
  2. Step 2: Convert to fraction form
    217,467.80/326,857.80 = 188,599.40/x
  3. Step 3: Cross multiply
    217,467.80x = 326,857.80 × 188,599.40
  4. Step 4: Simplify right side
    217,467.80x = 61,645,184,965.32
  5. Step 5: Solve for x
    x = 61,645,184,965.32/217,467.80
  6. Step 6: Final answer
    x = 283,468.10

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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.