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Finding the Fourth Proportional to 353,907.03, 488,374.88 and 192,761.31

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Solution

The fourth proportional to 353,907.03, 488,374.88 and 192,761.31 is: 266,001.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,907.03 : 488,374.88 = 192,761.31 : x
  2. Step 2: Convert to fraction form
    353,907.03/488,374.88 = 192,761.31/x
  3. Step 3: Cross multiply
    353,907.03x = 488,374.88 × 192,761.31
  4. Step 4: Simplify right side
    353,907.03x = 94,139,780,676.09
  5. Step 5: Solve for x
    x = 94,139,780,676.09/353,907.03
  6. Step 6: Final answer
    x = 266,001.44

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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.