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Finding the Fourth Proportional to 351,017.75, 484,404.71 and 198,088.54

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Solution

The fourth proportional to 351,017.75, 484,404.71 and 198,088.54 is: 273,362.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,017.75 : 484,404.71 = 198,088.54 : x
  2. Step 2: Convert to fraction form
    351,017.75/484,404.71 = 198,088.54/x
  3. Step 3: Cross multiply
    351,017.75x = 484,404.71 × 198,088.54
  4. Step 4: Simplify right side
    351,017.75x = 95,955,019,571.57
  5. Step 5: Solve for x
    x = 95,955,019,571.57/351,017.75
  6. Step 6: Final answer
    x = 273,362.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.