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Finding the Fourth Proportional to 219,217.50, 328,860.64 and 92,858.11

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Solution

The fourth proportional to 219,217.50, 328,860.64 and 92,858.11 is: 139,301.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,217.50 : 328,860.64 = 92,858.11 : x
  2. Step 2: Convert to fraction form
    219,217.50/328,860.64 = 92,858.11/x
  3. Step 3: Cross multiply
    219,217.50x = 328,860.64 × 92,858.11
  4. Step 4: Simplify right side
    219,217.50x = 30,537,375,839.49
  5. Step 5: Solve for x
    x = 30,537,375,839.49/219,217.50
  6. Step 6: Final answer
    x = 139,301.73

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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.