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Finding the Fourth Proportional to 434.02, 651.08 and 288.72

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Solution

The fourth proportional to 434.02, 651.08 and 288.72 is: 433.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    434.02 : 651.08 = 288.72 : x
  2. Step 2: Convert to fraction form
    434.02/651.08 = 288.72/x
  3. Step 3: Cross multiply
    434.02x = 651.08 × 288.72
  4. Step 4: Simplify right side
    434.02x = 187,979.82
  5. Step 5: Solve for x
    x = 187,979.82/434.02
  6. Step 6: Final answer
    x = 433.11

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