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Finding the Fourth Proportional to 280,556.81, 387,168.40 and 153,232.71

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Solution

The fourth proportional to 280,556.81, 387,168.40 and 153,232.71 is: 211,461.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,556.81 : 387,168.40 = 153,232.71 : x
  2. Step 2: Convert to fraction form
    280,556.81/387,168.40 = 153,232.71/x
  3. Step 3: Cross multiply
    280,556.81x = 387,168.40 × 153,232.71
  4. Step 4: Simplify right side
    280,556.81x = 59,326,863,349.90
  5. Step 5: Solve for x
    x = 59,326,863,349.90/280,556.81
  6. Step 6: Final answer
    x = 211,461.14

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