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Finding the Fourth Proportional to 462,576.98, 638,380.62 and 281,258.89

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Solution

The fourth proportional to 462,576.98, 638,380.62 and 281,258.89 is: 388,152.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,576.98 : 638,380.62 = 281,258.89 : x
  2. Step 2: Convert to fraction form
    462,576.98/638,380.62 = 281,258.89/x
  3. Step 3: Cross multiply
    462,576.98x = 638,380.62 × 281,258.89
  4. Step 4: Simplify right side
    462,576.98x = 179,550,222,982.76
  5. Step 5: Solve for x
    x = 179,550,222,982.76/462,576.98
  6. Step 6: Final answer
    x = 388,152.09

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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.