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Finding the Fourth Proportional to 299,345.60, 448,628.40 and 121,644.88

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Solution

The fourth proportional to 299,345.60, 448,628.40 and 121,644.88 is: 182,308.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,345.60 : 448,628.40 = 121,644.88 : x
  2. Step 2: Convert to fraction form
    299,345.60/448,628.40 = 121,644.88/x
  3. Step 3: Cross multiply
    299,345.60x = 448,628.40 × 121,644.88
  4. Step 4: Simplify right side
    299,345.60x = 54,573,347,882.59
  5. Step 5: Solve for x
    x = 54,573,347,882.59/299,345.60
  6. Step 6: Final answer
    x = 182,308.84

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