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Finding the Fourth Proportional to 327,251.36, 488,487.88 and 280,802.72

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Solution

The fourth proportional to 327,251.36, 488,487.88 and 280,802.72 is: 419,154.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,251.36 : 488,487.88 = 280,802.72 : x
  2. Step 2: Convert to fraction form
    327,251.36/488,487.88 = 280,802.72/x
  3. Step 3: Cross multiply
    327,251.36x = 488,487.88 × 280,802.72
  4. Step 4: Simplify right side
    327,251.36x = 137,168,725,391.03
  5. Step 5: Solve for x
    x = 137,168,725,391.03/327,251.36
  6. Step 6: Final answer
    x = 419,154.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.