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Finding the Fourth Proportional to 287,257.73, 430,483.25 and 227,021.37

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Solution

The fourth proportional to 287,257.73, 430,483.25 and 227,021.37 is: 340,213.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,257.73 : 430,483.25 = 227,021.37 : x
  2. Step 2: Convert to fraction form
    287,257.73/430,483.25 = 227,021.37/x
  3. Step 3: Cross multiply
    287,257.73x = 430,483.25 × 227,021.37
  4. Step 4: Simplify right side
    287,257.73x = 97,728,897,177.05
  5. Step 5: Solve for x
    x = 97,728,897,177.05/287,257.73
  6. Step 6: Final answer
    x = 340,213.29

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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.