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Finding the Fourth Proportional to 305,003.68, 420,897.90 and 177,671.05

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Solution

The fourth proportional to 305,003.68, 420,897.90 and 177,671.05 is: 245,181.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,003.68 : 420,897.90 = 177,671.05 : x
  2. Step 2: Convert to fraction form
    305,003.68/420,897.90 = 177,671.05/x
  3. Step 3: Cross multiply
    305,003.68x = 420,897.90 × 177,671.05
  4. Step 4: Simplify right side
    305,003.68x = 74,781,371,835.80
  5. Step 5: Solve for x
    x = 74,781,371,835.80/305,003.68
  6. Step 6: Final answer
    x = 245,181.87

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