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Finding the Fourth Proportional to 354, 530.05 and 199.70

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Solution

The fourth proportional to 354, 530.05 and 199.70 is: 299.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    354 : 530.05 = 199.70 : x
  2. Step 2: Convert to fraction form
    354/530.05 = 199.70/x
  3. Step 3: Cross multiply
    354x = 530.05 × 199.70
  4. Step 4: Simplify right side
    354x = 105,847.84
  5. Step 5: Solve for x
    x = 105,847.84/354
  6. Step 6: Final answer
    x = 299.01

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