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Finding the Fourth Proportional to 282,377.13, 389,683.17 and 155,055.45

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Solution

The fourth proportional to 282,377.13, 389,683.17 and 155,055.45 is: 213,978.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,377.13 : 389,683.17 = 155,055.45 : x
  2. Step 2: Convert to fraction form
    282,377.13/389,683.17 = 155,055.45/x
  3. Step 3: Cross multiply
    282,377.13x = 389,683.17 × 155,055.45
  4. Step 4: Simplify right side
    282,377.13x = 60,422,499,281.78
  5. Step 5: Solve for x
    x = 60,422,499,281.78/282,377.13
  6. Step 6: Final answer
    x = 213,978.02

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