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Finding the Fourth Proportional to 257,979.35, 356,044.28 and 156,005.53

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Solution

The fourth proportional to 257,979.35, 356,044.28 and 156,005.53 is: 215,307.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,979.35 : 356,044.28 = 156,005.53 : x
  2. Step 2: Convert to fraction form
    257,979.35/356,044.28 = 156,005.53/x
  3. Step 3: Cross multiply
    257,979.35x = 356,044.28 × 156,005.53
  4. Step 4: Simplify right side
    257,979.35x = 55,544,874,934.73
  5. Step 5: Solve for x
    x = 55,544,874,934.73/257,979.35
  6. Step 6: Final answer
    x = 215,307.44

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