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Finding the Fourth Proportional to 380,560.67, 525,173.95 and 208,484.89

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Solution

The fourth proportional to 380,560.67, 525,173.95 and 208,484.89 is: 287,709.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,560.67 : 525,173.95 = 208,484.89 : x
  2. Step 2: Convert to fraction form
    380,560.67/525,173.95 = 208,484.89/x
  3. Step 3: Cross multiply
    380,560.67x = 525,173.95 × 208,484.89
  4. Step 4: Simplify right side
    380,560.67x = 109,490,833,196.62
  5. Step 5: Solve for x
    x = 109,490,833,196.62/380,560.67
  6. Step 6: Final answer
    x = 287,709.27

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