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Finding the Fourth Proportional to 318,800.96, 439,941 and 180,978.70

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Solution

The fourth proportional to 318,800.96, 439,941 and 180,978.70 is: 249,748.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,800.96 : 439,941 = 180,978.70 : x
  2. Step 2: Convert to fraction form
    318,800.96/439,941 = 180,978.70/x
  3. Step 3: Cross multiply
    318,800.96x = 439,941 × 180,978.70
  4. Step 4: Simplify right side
    318,800.96x = 79,619,950,256.70
  5. Step 5: Solve for x
    x = 79,619,950,256.70/318,800.96
  6. Step 6: Final answer
    x = 249,748.15

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