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Finding the Fourth Proportional to 501.71, 753.89 and 258.39

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Solution

The fourth proportional to 501.71, 753.89 and 258.39 is: 388.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    501.71 : 753.89 = 258.39 : x
  2. Step 2: Convert to fraction form
    501.71/753.89 = 258.39/x
  3. Step 3: Cross multiply
    501.71x = 753.89 × 258.39
  4. Step 4: Simplify right side
    501.71x = 194,796.35
  5. Step 5: Solve for x
    x = 194,796.35/501.71
  6. Step 6: Final answer
    x = 388.27

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