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Finding the Fourth Proportional to 477.85, 659.64 and 291.41

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Solution

The fourth proportional to 477.85, 659.64 and 291.41 is: 402.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    477.85 : 659.64 = 291.41 : x
  2. Step 2: Convert to fraction form
    477.85/659.64 = 291.41/x
  3. Step 3: Cross multiply
    477.85x = 659.64 × 291.41
  4. Step 4: Simplify right side
    477.85x = 192,225.69
  5. Step 5: Solve for x
    x = 192,225.69/477.85
  6. Step 6: Final answer
    x = 402.27

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