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Finding the Fourth Proportional to 425.93, 639.20 and 152.02

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Solution

The fourth proportional to 425.93, 639.20 and 152.02 is: 228.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    425.93 : 639.20 = 152.02 : x
  2. Step 2: Convert to fraction form
    425.93/639.20 = 152.02/x
  3. Step 3: Cross multiply
    425.93x = 639.20 × 152.02
  4. Step 4: Simplify right side
    425.93x = 97,168.83
  5. Step 5: Solve for x
    x = 97,168.83/425.93
  6. Step 6: Final answer
    x = 228.14

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