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Finding the Fourth Proportional to 257,213.07, 354,972.74 and 155,263.37

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Solution

The fourth proportional to 257,213.07, 354,972.74 and 155,263.37 is: 214,274.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,213.07 : 354,972.74 = 155,263.37 : x
  2. Step 2: Convert to fraction form
    257,213.07/354,972.74 = 155,263.37/x
  3. Step 3: Cross multiply
    257,213.07x = 354,972.74 × 155,263.37
  4. Step 4: Simplify right side
    257,213.07x = 55,114,261,319.35
  5. Step 5: Solve for x
    x = 55,114,261,319.35/257,213.07
  6. Step 6: Final answer
    x = 214,274.73

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