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Finding the Fourth Proportional to 380,761.92, 525,454.56 and 210,998.88

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Solution

The fourth proportional to 380,761.92, 525,454.56 and 210,998.88 is: 291,180.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,761.92 : 525,454.56 = 210,998.88 : x
  2. Step 2: Convert to fraction form
    380,761.92/525,454.56 = 210,998.88/x
  3. Step 3: Cross multiply
    380,761.92x = 525,454.56 × 210,998.88
  4. Step 4: Simplify right side
    380,761.92x = 110,870,323,650.89
  5. Step 5: Solve for x
    x = 110,870,323,650.89/380,761.92
  6. Step 6: Final answer
    x = 291,180.18

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