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Finding the Fourth Proportional to 385.81, 531.19 and 341.48

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Solution

The fourth proportional to 385.81, 531.19 and 341.48 is: 470.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    385.81 : 531.19 = 341.48 : x
  2. Step 2: Convert to fraction form
    385.81/531.19 = 341.48/x
  3. Step 3: Cross multiply
    385.81x = 531.19 × 341.48
  4. Step 4: Simplify right side
    385.81x = 181,390.76
  5. Step 5: Solve for x
    x = 181,390.76/385.81
  6. Step 6: Final answer
    x = 470.16

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