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Finding the Fourth Proportional to 380.03, 569.90 and 197.40

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Solution

The fourth proportional to 380.03, 569.90 and 197.40 is: 296.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    380.03 : 569.90 = 197.40 : x
  2. Step 2: Convert to fraction form
    380.03/569.90 = 197.40/x
  3. Step 3: Cross multiply
    380.03x = 569.90 × 197.40
  4. Step 4: Simplify right side
    380.03x = 112,500.89
  5. Step 5: Solve for x
    x = 112,500.89/380.03
  6. Step 6: Final answer
    x = 296.04

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