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Finding the Fourth Proportional to 330,500.96, 495,662.88 and 143,468

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Solution

The fourth proportional to 330,500.96, 495,662.88 and 143,468 is: 215,163.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,500.96 : 495,662.88 = 143,468 : x
  2. Step 2: Convert to fraction form
    330,500.96/495,662.88 = 143,468/x
  3. Step 3: Cross multiply
    330,500.96x = 495,662.88 × 143,468
  4. Step 4: Simplify right side
    330,500.96x = 71,111,762,067.84
  5. Step 5: Solve for x
    x = 71,111,762,067.84/330,500.96
  6. Step 6: Final answer
    x = 215,163.56

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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.