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Finding the Fourth Proportional to 275,115.52, 412,063.62 and 211,466.98

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Solution

The fourth proportional to 275,115.52, 412,063.62 and 211,466.98 is: 316,731.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,115.52 : 412,063.62 = 211,466.98 : x
  2. Step 2: Convert to fraction form
    275,115.52/412,063.62 = 211,466.98/x
  3. Step 3: Cross multiply
    275,115.52x = 412,063.62 × 211,466.98
  4. Step 4: Simplify right side
    275,115.52x = 87,137,849,289.27
  5. Step 5: Solve for x
    x = 87,137,849,289.27/275,115.52
  6. Step 6: Final answer
    x = 316,731.86

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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.