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Finding the Fourth Proportional to 388,909.62, 536,676.03 and 219,154.68

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Solution

The fourth proportional to 388,909.62, 536,676.03 and 219,154.68 is: 302,422.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,909.62 : 536,676.03 = 219,154.68 : x
  2. Step 2: Convert to fraction form
    388,909.62/536,676.03 = 219,154.68/x
  3. Step 3: Cross multiply
    388,909.62x = 536,676.03 × 219,154.68
  4. Step 4: Simplify right side
    388,909.62x = 117,615,063,618.32
  5. Step 5: Solve for x
    x = 117,615,063,618.32/388,909.62
  6. Step 6: Final answer
    x = 302,422.61

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