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Finding the Fourth Proportional to 289,339.20, 433,663.20 and 149,025.60

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Solution

The fourth proportional to 289,339.20, 433,663.20 and 149,025.60 is: 223,360.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,339.20 : 433,663.20 = 149,025.60 : x
  2. Step 2: Convert to fraction form
    289,339.20/433,663.20 = 149,025.60/x
  3. Step 3: Cross multiply
    289,339.20x = 433,663.20 × 149,025.60
  4. Step 4: Simplify right side
    289,339.20x = 64,626,918,577.92
  5. Step 5: Solve for x
    x = 64,626,918,577.92/289,339.20
  6. Step 6: Final answer
    x = 223,360.40

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