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Finding the Fourth Proportional to 327,975.60, 492,078.60 and 117,620.40

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Solution

The fourth proportional to 327,975.60, 492,078.60 and 117,620.40 is: 176,471.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,975.60 : 492,078.60 = 117,620.40 : x
  2. Step 2: Convert to fraction form
    327,975.60/492,078.60 = 117,620.40/x
  3. Step 3: Cross multiply
    327,975.60x = 492,078.60 × 117,620.40
  4. Step 4: Simplify right side
    327,975.60x = 57,878,481,763.44
  5. Step 5: Solve for x
    x = 57,878,481,763.44/327,975.60
  6. Step 6: Final answer
    x = 176,471.91

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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.