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Finding the Fourth Proportional to 381.84, 526.93 and 207.18

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Solution

The fourth proportional to 381.84, 526.93 and 207.18 is: 285.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    381.84 : 526.93 = 207.18 : x
  2. Step 2: Convert to fraction form
    381.84/526.93 = 207.18/x
  3. Step 3: Cross multiply
    381.84x = 526.93 × 207.18
  4. Step 4: Simplify right side
    381.84x = 109,169.88
  5. Step 5: Solve for x
    x = 109,169.88/381.84
  6. Step 6: Final answer
    x = 285.91

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