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Finding the Fourth Proportional to 309,607.74, 427,217.36 and 171,784.46

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Solution

The fourth proportional to 309,607.74, 427,217.36 and 171,784.46 is: 237,039.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,607.74 : 427,217.36 = 171,784.46 : x
  2. Step 2: Convert to fraction form
    309,607.74/427,217.36 = 171,784.46/x
  3. Step 3: Cross multiply
    309,607.74x = 427,217.36 × 171,784.46
  4. Step 4: Simplify right side
    309,607.74x = 73,389,303,699.35
  5. Step 5: Solve for x
    x = 73,389,303,699.35/309,607.74
  6. Step 6: Final answer
    x = 237,039.63

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