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Finding the Fourth Proportional to 204,060.73, 306,009.07 and 77,657.60

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Solution

The fourth proportional to 204,060.73, 306,009.07 and 77,657.60 is: 116,455.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,060.73 : 306,009.07 = 77,657.60 : x
  2. Step 2: Convert to fraction form
    204,060.73/306,009.07 = 77,657.60/x
  3. Step 3: Cross multiply
    204,060.73x = 306,009.07 × 77,657.60
  4. Step 4: Simplify right side
    204,060.73x = 23,763,929,954.43
  5. Step 5: Solve for x
    x = 23,763,929,954.43/204,060.73
  6. Step 6: Final answer
    x = 116,455.18

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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.