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Finding the Fourth Proportional to 331,235.04, 496,230.48 and 257,000.16

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Solution

The fourth proportional to 331,235.04, 496,230.48 and 257,000.16 is: 385,017.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,235.04 : 496,230.48 = 257,000.16 : x
  2. Step 2: Convert to fraction form
    331,235.04/496,230.48 = 257,000.16/x
  3. Step 3: Cross multiply
    331,235.04x = 496,230.48 × 257,000.16
  4. Step 4: Simplify right side
    331,235.04x = 127,531,312,756.88
  5. Step 5: Solve for x
    x = 127,531,312,756.88/331,235.04
  6. Step 6: Final answer
    x = 385,017.58

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