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Finding the Fourth Proportional to 278,456.34, 384,270.12 and 151,131.95

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Solution

The fourth proportional to 278,456.34, 384,270.12 and 151,131.95 is: 208,562.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,456.34 : 384,270.12 = 151,131.95 : x
  2. Step 2: Convert to fraction form
    278,456.34/384,270.12 = 151,131.95/x
  3. Step 3: Cross multiply
    278,456.34x = 384,270.12 × 151,131.95
  4. Step 4: Simplify right side
    278,456.34x = 58,075,492,562.33
  5. Step 5: Solve for x
    x = 58,075,492,562.33/278,456.34
  6. Step 6: Final answer
    x = 208,562.29

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