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Finding the Fourth Proportional to 390,199.88, 584,848.02 and 179,395.40

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Solution

The fourth proportional to 390,199.88, 584,848.02 and 179,395.40 is: 268,885.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,199.88 : 584,848.02 = 179,395.40 : x
  2. Step 2: Convert to fraction form
    390,199.88/584,848.02 = 179,395.40/x
  3. Step 3: Cross multiply
    390,199.88x = 584,848.02 × 179,395.40
  4. Step 4: Simplify right side
    390,199.88x = 104,919,044,487.11
  5. Step 5: Solve for x
    x = 104,919,044,487.11/390,199.88
  6. Step 6: Final answer
    x = 268,885.38

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