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Finding the Fourth Proportional to 323,661.35, 446,844.02 and 287,751.96

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Solution

The fourth proportional to 323,661.35, 446,844.02 and 287,751.96 is: 397,267.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,661.35 : 446,844.02 = 287,751.96 : x
  2. Step 2: Convert to fraction form
    323,661.35/446,844.02 = 287,751.96/x
  3. Step 3: Cross multiply
    323,661.35x = 446,844.02 × 287,751.96
  4. Step 4: Simplify right side
    323,661.35x = 128,580,241,130.52
  5. Step 5: Solve for x
    x = 128,580,241,130.52/323,661.35
  6. Step 6: Final answer
    x = 397,267.82

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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.