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Finding the Fourth Proportional to 323,108.78, 484,438.72 and 143,096.11

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Solution

The fourth proportional to 323,108.78, 484,438.72 and 143,096.11 is: 214,544.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,108.78 : 484,438.72 = 143,096.11 : x
  2. Step 2: Convert to fraction form
    323,108.78/484,438.72 = 143,096.11/x
  3. Step 3: Cross multiply
    323,108.78x = 484,438.72 × 143,096.11
  4. Step 4: Simplify right side
    323,108.78x = 69,321,293,943.19
  5. Step 5: Solve for x
    x = 69,321,293,943.19/323,108.78
  6. Step 6: Final answer
    x = 214,544.76

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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.