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Finding the Fourth Proportional to 462,439.89, 638,166.81 and 271,453.26

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Solution

The fourth proportional to 462,439.89, 638,166.81 and 271,453.26 is: 374,605.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,439.89 : 638,166.81 = 271,453.26 : x
  2. Step 2: Convert to fraction form
    462,439.89/638,166.81 = 271,453.26/x
  3. Step 3: Cross multiply
    462,439.89x = 638,166.81 × 271,453.26
  4. Step 4: Simplify right side
    462,439.89x = 173,232,460,998.30
  5. Step 5: Solve for x
    x = 173,232,460,998.30/462,439.89
  6. Step 6: Final answer
    x = 374,605.36

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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.