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Finding the Fourth Proportional to 275,976.78, 413,573.13 and 212,557.02

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Solution

The fourth proportional to 275,976.78, 413,573.13 and 212,557.02 is: 318,533.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,976.78 : 413,573.13 = 212,557.02 : x
  2. Step 2: Convert to fraction form
    275,976.78/413,573.13 = 212,557.02/x
  3. Step 3: Cross multiply
    275,976.78x = 413,573.13 × 212,557.02
  4. Step 4: Simplify right side
    275,976.78x = 87,907,872,064.87
  5. Step 5: Solve for x
    x = 87,907,872,064.87/275,976.78
  6. Step 6: Final answer
    x = 318,533.58

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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.