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Finding the Fourth Proportional to 292,701.60, 438,728.40 and 115,149.60

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Solution

The fourth proportional to 292,701.60, 438,728.40 and 115,149.60 is: 172,596.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,701.60 : 438,728.40 = 115,149.60 : x
  2. Step 2: Convert to fraction form
    292,701.60/438,728.40 = 115,149.60/x
  3. Step 3: Cross multiply
    292,701.60x = 438,728.40 × 115,149.60
  4. Step 4: Simplify right side
    292,701.60x = 50,519,399,768.64
  5. Step 5: Solve for x
    x = 50,519,399,768.64/292,701.60
  6. Step 6: Final answer
    x = 172,596.94

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