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Finding the Fourth Proportional to 289,460.61, 399,650.60 and 180,730.49

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Solution

The fourth proportional to 289,460.61, 399,650.60 and 180,730.49 is: 249,529.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,460.61 : 399,650.60 = 180,730.49 : x
  2. Step 2: Convert to fraction form
    289,460.61/399,650.60 = 180,730.49/x
  3. Step 3: Cross multiply
    289,460.61x = 399,650.60 × 180,730.49
  4. Step 4: Simplify right side
    289,460.61x = 72,229,045,864.89
  5. Step 5: Solve for x
    x = 72,229,045,864.89/289,460.61
  6. Step 6: Final answer
    x = 249,529.79

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