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Finding the Fourth Proportional to 219,074, 328,578.04 and 61,282

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Solution

The fourth proportional to 219,074, 328,578.04 and 61,282 is: 91,913.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,074 : 328,578.04 = 61,282 : x
  2. Step 2: Convert to fraction form
    219,074/328,578.04 = 61,282/x
  3. Step 3: Cross multiply
    219,074x = 328,578.04 × 61,282
  4. Step 4: Simplify right side
    219,074x = 20,135,919,447.28
  5. Step 5: Solve for x
    x = 20,135,919,447.28/219,074
  6. Step 6: Final answer
    x = 91,913.78

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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.