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Finding the Fourth Proportional to 306,518.64, 422,897.16 and 185,621.20

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Solution

The fourth proportional to 306,518.64, 422,897.16 and 185,621.20 is: 256,097.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,518.64 : 422,897.16 = 185,621.20 : x
  2. Step 2: Convert to fraction form
    306,518.64/422,897.16 = 185,621.20/x
  3. Step 3: Cross multiply
    306,518.64x = 422,897.16 × 185,621.20
  4. Step 4: Simplify right side
    306,518.64x = 78,498,678,315.79
  5. Step 5: Solve for x
    x = 78,498,678,315.79/306,518.64
  6. Step 6: Final answer
    x = 256,097.57

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