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Finding the Fourth Proportional to 235,796.52, 353,481.45 and 86,001.72

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Solution

The fourth proportional to 235,796.52, 353,481.45 and 86,001.72 is: 128,924.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,796.52 : 353,481.45 = 86,001.72 : x
  2. Step 2: Convert to fraction form
    235,796.52/353,481.45 = 86,001.72/x
  3. Step 3: Cross multiply
    235,796.52x = 353,481.45 × 86,001.72
  4. Step 4: Simplify right side
    235,796.52x = 30,400,012,688.09
  5. Step 5: Solve for x
    x = 30,400,012,688.09/235,796.52
  6. Step 6: Final answer
    x = 128,924.77

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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.