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Finding the Fourth Proportional to 406.76, 606.98 and 358.76

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Solution

The fourth proportional to 406.76, 606.98 and 358.76 is: 535.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    406.76 : 606.98 = 358.76 : x
  2. Step 2: Convert to fraction form
    406.76/606.98 = 358.76/x
  3. Step 3: Cross multiply
    406.76x = 606.98 × 358.76
  4. Step 4: Simplify right side
    406.76x = 217,760.14
  5. Step 5: Solve for x
    x = 217,760.14/406.76
  6. Step 6: Final answer
    x = 535.35

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