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Finding the Fourth Proportional to 318,950.44, 478,426.33 and 299,464.27

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Solution

The fourth proportional to 318,950.44, 478,426.33 and 299,464.27 is: 449,197.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,950.44 : 478,426.33 = 299,464.27 : x
  2. Step 2: Convert to fraction form
    318,950.44/478,426.33 = 299,464.27/x
  3. Step 3: Cross multiply
    318,950.44x = 478,426.33 × 299,464.27
  4. Step 4: Simplify right side
    318,950.44x = 143,271,591,662.23
  5. Step 5: Solve for x
    x = 143,271,591,662.23/318,950.44
  6. Step 6: Final answer
    x = 449,197.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.