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Finding the Fourth Proportional to 462,483.09, 638,329.68 and 281,156.67

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Solution

The fourth proportional to 462,483.09, 638,329.68 and 281,156.67 is: 388,058.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,483.09 : 638,329.68 = 281,156.67 : x
  2. Step 2: Convert to fraction form
    462,483.09/638,329.68 = 281,156.67/x
  3. Step 3: Cross multiply
    462,483.09x = 638,329.68 × 281,156.67
  4. Step 4: Simplify right side
    462,483.09x = 179,470,647,190.97
  5. Step 5: Solve for x
    x = 179,470,647,190.97/462,483.09
  6. Step 6: Final answer
    x = 388,058.83

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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.