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Finding the Fourth Proportional to 208,229.90, 287,841.51 and 185,791.28

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Solution

The fourth proportional to 208,229.90, 287,841.51 and 185,791.28 is: 256,824.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,229.90 : 287,841.51 = 185,791.28 : x
  2. Step 2: Convert to fraction form
    208,229.90/287,841.51 = 185,791.28/x
  3. Step 3: Cross multiply
    208,229.90x = 287,841.51 × 185,791.28
  4. Step 4: Simplify right side
    208,229.90x = 53,478,442,580.03
  5. Step 5: Solve for x
    x = 53,478,442,580.03/208,229.90
  6. Step 6: Final answer
    x = 256,824.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.