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Finding the Fourth Proportional to 380.72, 569.64 and 354.26

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Solution

The fourth proportional to 380.72, 569.64 and 354.26 is: 530.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    380.72 : 569.64 = 354.26 : x
  2. Step 2: Convert to fraction form
    380.72/569.64 = 354.26/x
  3. Step 3: Cross multiply
    380.72x = 569.64 × 354.26
  4. Step 4: Simplify right side
    380.72x = 201,800.67
  5. Step 5: Solve for x
    x = 201,800.67/380.72
  6. Step 6: Final answer
    x = 530.05

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