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Finding the Fourth Proportional to 208,364.20, 287,543.30 and 112,870.60

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Solution

The fourth proportional to 208,364.20, 287,543.30 and 112,870.60 is: 155,761.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,364.20 : 287,543.30 = 112,870.60 : x
  2. Step 2: Convert to fraction form
    208,364.20/287,543.30 = 112,870.60/x
  3. Step 3: Cross multiply
    208,364.20x = 287,543.30 × 112,870.60
  4. Step 4: Simplify right side
    208,364.20x = 32,455,184,796.98
  5. Step 5: Solve for x
    x = 32,455,184,796.98/208,364.20
  6. Step 6: Final answer
    x = 155,761.81

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