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Finding the Fourth Proportional to 338,138.28, 466,630.80 and 187,235.28

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Solution

The fourth proportional to 338,138.28, 466,630.80 and 187,235.28 is: 258,384.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,138.28 : 466,630.80 = 187,235.28 : x
  2. Step 2: Convert to fraction form
    338,138.28/466,630.80 = 187,235.28/x
  3. Step 3: Cross multiply
    338,138.28x = 466,630.80 × 187,235.28
  4. Step 4: Simplify right side
    338,138.28x = 87,369,748,494.62
  5. Step 5: Solve for x
    x = 87,369,748,494.62/338,138.28
  6. Step 6: Final answer
    x = 258,384.67

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