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Finding the Fourth Proportional to 348.65, 482.18 and 304.91

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Solution

The fourth proportional to 348.65, 482.18 and 304.91 is: 421.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    348.65 : 482.18 = 304.91 : x
  2. Step 2: Convert to fraction form
    348.65/482.18 = 304.91/x
  3. Step 3: Cross multiply
    348.65x = 482.18 × 304.91
  4. Step 4: Simplify right side
    348.65x = 147,017.57
  5. Step 5: Solve for x
    x = 147,017.57/348.65
  6. Step 6: Final answer
    x = 421.68

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