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Finding the Fourth Proportional to 287,518.51, 396,778.30 and 158,461.67

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Solution

The fourth proportional to 287,518.51, 396,778.30 and 158,461.67 is: 218,678.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,518.51 : 396,778.30 = 158,461.67 : x
  2. Step 2: Convert to fraction form
    287,518.51/396,778.30 = 158,461.67/x
  3. Step 3: Cross multiply
    287,518.51x = 396,778.30 × 158,461.67
  4. Step 4: Simplify right side
    287,518.51x = 62,874,150,401.67
  5. Step 5: Solve for x
    x = 62,874,150,401.67/287,518.51
  6. Step 6: Final answer
    x = 218,678.62

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