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Finding the Fourth Proportional to 323,158.21, 484,487.53 and 163,151.78

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Solution

The fourth proportional to 323,158.21, 484,487.53 and 163,151.78 is: 244,601.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,158.21 : 484,487.53 = 163,151.78 : x
  2. Step 2: Convert to fraction form
    323,158.21/484,487.53 = 163,151.78/x
  3. Step 3: Cross multiply
    323,158.21x = 484,487.53 × 163,151.78
  4. Step 4: Simplify right side
    323,158.21x = 79,045,000,076.99
  5. Step 5: Solve for x
    x = 79,045,000,076.99/323,158.21
  6. Step 6: Final answer
    x = 244,601.56

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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.