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Finding the Fourth Proportional to 253,345.55, 349,611.46 and 138,623.74

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Solution

The fourth proportional to 253,345.55, 349,611.46 and 138,623.74 is: 191,297.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,345.55 : 349,611.46 = 138,623.74 : x
  2. Step 2: Convert to fraction form
    253,345.55/349,611.46 = 138,623.74/x
  3. Step 3: Cross multiply
    253,345.55x = 349,611.46 × 138,623.74
  4. Step 4: Simplify right side
    253,345.55x = 48,464,446,911.47
  5. Step 5: Solve for x
    x = 48,464,446,911.47/253,345.55
  6. Step 6: Final answer
    x = 191,297.81

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