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Finding the Fourth Proportional to 205,440.60, 308,015.10 and 93,174.60

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Solution

The fourth proportional to 205,440.60, 308,015.10 and 93,174.60 is: 139,695.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,440.60 : 308,015.10 = 93,174.60 : x
  2. Step 2: Convert to fraction form
    205,440.60/308,015.10 = 93,174.60/x
  3. Step 3: Cross multiply
    205,440.60x = 308,015.10 × 93,174.60
  4. Step 4: Simplify right side
    205,440.60x = 28,699,183,736.46
  5. Step 5: Solve for x
    x = 28,699,183,736.46/205,440.60
  6. Step 6: Final answer
    x = 139,695.77

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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.