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Finding the Fourth Proportional to 205,591.60, 307,926.60 and 122,647.60

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Solution

The fourth proportional to 205,591.60, 307,926.60 and 122,647.60 is: 183,696.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,591.60 : 307,926.60 = 122,647.60 : x
  2. Step 2: Convert to fraction form
    205,591.60/307,926.60 = 122,647.60/x
  3. Step 3: Cross multiply
    205,591.60x = 307,926.60 × 122,647.60
  4. Step 4: Simplify right side
    205,591.60x = 37,766,458,466.16
  5. Step 5: Solve for x
    x = 37,766,458,466.16/205,591.60
  6. Step 6: Final answer
    x = 183,696.51

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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.