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Finding the Fourth Proportional to 358,978.72, 538,466.64 and 134,356

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Solution

The fourth proportional to 358,978.72, 538,466.64 and 134,356 is: 201,533.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,978.72 : 538,466.64 = 134,356 : x
  2. Step 2: Convert to fraction form
    358,978.72/538,466.64 = 134,356/x
  3. Step 3: Cross multiply
    358,978.72x = 538,466.64 × 134,356
  4. Step 4: Simplify right side
    358,978.72x = 72,346,223,883.84
  5. Step 5: Solve for x
    x = 72,346,223,883.84/358,978.72
  6. Step 6: Final answer
    x = 201,533.46

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