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Finding the Fourth Proportional to 388,676.75, 536,508.15 and 227,583.59

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Solution

The fourth proportional to 388,676.75, 536,508.15 and 227,583.59 is: 314,143.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,676.75 : 536,508.15 = 227,583.59 : x
  2. Step 2: Convert to fraction form
    388,676.75/536,508.15 = 227,583.59/x
  3. Step 3: Cross multiply
    388,676.75x = 536,508.15 × 227,583.59
  4. Step 4: Simplify right side
    388,676.75x = 122,100,450,841.26
  5. Step 5: Solve for x
    x = 122,100,450,841.26/388,676.75
  6. Step 6: Final answer
    x = 314,143.95

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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.