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Finding the Fourth Proportional to 329,028.60, 492,804.78 and 269,979.60

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Solution

The fourth proportional to 329,028.60, 492,804.78 and 269,979.60 is: 404,363.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,028.60 : 492,804.78 = 269,979.60 : x
  2. Step 2: Convert to fraction form
    329,028.60/492,804.78 = 269,979.60/x
  3. Step 3: Cross multiply
    329,028.60x = 492,804.78 × 269,979.60
  4. Step 4: Simplify right side
    329,028.60x = 133,047,237,382.49
  5. Step 5: Solve for x
    x = 133,047,237,382.49/329,028.60
  6. Step 6: Final answer
    x = 404,363.75

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1.5x scale

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.