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Finding the Fourth Proportional to 287,392.02, 431,140.31 and 97,842.69

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Solution

The fourth proportional to 287,392.02, 431,140.31 and 97,842.69 is: 146,781.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,392.02 : 431,140.31 = 97,842.69 : x
  2. Step 2: Convert to fraction form
    287,392.02/431,140.31 = 97,842.69/x
  3. Step 3: Cross multiply
    287,392.02x = 431,140.31 × 97,842.69
  4. Step 4: Simplify right side
    287,392.02x = 42,183,927,208.62
  5. Step 5: Solve for x
    x = 42,183,927,208.62/287,392.02
  6. Step 6: Final answer
    x = 146,781.83

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