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Finding the Fourth Proportional to 368,951.85, 509,156.39 and 207,791.82

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Solution

The fourth proportional to 368,951.85, 509,156.39 and 207,791.82 is: 286,754.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,951.85 : 509,156.39 = 207,791.82 : x
  2. Step 2: Convert to fraction form
    368,951.85/509,156.39 = 207,791.82/x
  3. Step 3: Cross multiply
    368,951.85x = 509,156.39 × 207,791.82
  4. Step 4: Simplify right side
    368,951.85x = 105,798,532,942.73
  5. Step 5: Solve for x
    x = 105,798,532,942.73/368,951.85
  6. Step 6: Final answer
    x = 286,754.31

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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.