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Finding the Fourth Proportional to 312,256.40, 430,798.56 and 204,886.04

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Solution

The fourth proportional to 312,256.40, 430,798.56 and 204,886.04 is: 282,667.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,256.40 : 430,798.56 = 204,886.04 : x
  2. Step 2: Convert to fraction form
    312,256.40/430,798.56 = 204,886.04/x
  3. Step 3: Cross multiply
    312,256.40x = 430,798.56 × 204,886.04
  4. Step 4: Simplify right side
    312,256.40x = 88,264,610,996.10
  5. Step 5: Solve for x
    x = 88,264,610,996.10/312,256.40
  6. Step 6: Final answer
    x = 282,667.10

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