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Finding the Fourth Proportional to 385,165.80, 531,662.40 and 264,705.84

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Solution

The fourth proportional to 385,165.80, 531,662.40 and 264,705.84 is: 365,385.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,165.80 : 531,662.40 = 264,705.84 : x
  2. Step 2: Convert to fraction form
    385,165.80/531,662.40 = 264,705.84/x
  3. Step 3: Cross multiply
    385,165.80x = 531,662.40 × 264,705.84
  4. Step 4: Simplify right side
    385,165.80x = 140,734,142,188.42
  5. Step 5: Solve for x
    x = 140,734,142,188.42/385,165.80
  6. Step 6: Final answer
    x = 365,385.87

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