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Finding the Fourth Proportional to 288,938.36, 433,299.76 and 99,345.08

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Solution

The fourth proportional to 288,938.36, 433,299.76 and 99,345.08 is: 148,980.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,938.36 : 433,299.76 = 99,345.08 : x
  2. Step 2: Convert to fraction form
    288,938.36/433,299.76 = 99,345.08/x
  3. Step 3: Cross multiply
    288,938.36x = 433,299.76 × 99,345.08
  4. Step 4: Simplify right side
    288,938.36x = 43,046,199,321.18
  5. Step 5: Solve for x
    x = 43,046,199,321.18/288,938.36
  6. Step 6: Final answer
    x = 148,980.56

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