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Finding the Fourth Proportional to 208,913.91, 288,015.56 and 143,500.74

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Solution

The fourth proportional to 208,913.91, 288,015.56 and 143,500.74 is: 197,834.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,913.91 : 288,015.56 = 143,500.74 : x
  2. Step 2: Convert to fraction form
    208,913.91/288,015.56 = 143,500.74/x
  3. Step 3: Cross multiply
    208,913.91x = 288,015.56 × 143,500.74
  4. Step 4: Simplify right side
    208,913.91x = 41,330,445,991.51
  5. Step 5: Solve for x
    x = 41,330,445,991.51/208,913.91
  6. Step 6: Final answer
    x = 197,834.82

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