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Finding the Fourth Proportional to 323,018.09, 484,571.47 and 109,728.75

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Solution

The fourth proportional to 323,018.09, 484,571.47 and 109,728.75 is: 164,608.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,018.09 : 484,571.47 = 109,728.75 : x
  2. Step 2: Convert to fraction form
    323,018.09/484,571.47 = 109,728.75/x
  3. Step 3: Cross multiply
    323,018.09x = 484,571.47 × 109,728.75
  4. Step 4: Simplify right side
    323,018.09x = 53,171,421,688.76
  5. Step 5: Solve for x
    x = 53,171,421,688.76/323,018.09
  6. Step 6: Final answer
    x = 164,608.19

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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.