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Finding the Fourth Proportional to 235,659.31, 325,215.41 and 133,691.65

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Solution

The fourth proportional to 235,659.31, 325,215.41 and 133,691.65 is: 184,497.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,659.31 : 325,215.41 = 133,691.65 : x
  2. Step 2: Convert to fraction form
    235,659.31/325,215.41 = 133,691.65/x
  3. Step 3: Cross multiply
    235,659.31x = 325,215.41 × 133,691.65
  4. Step 4: Simplify right side
    235,659.31x = 43,478,583,286.83
  5. Step 5: Solve for x
    x = 43,478,583,286.83/235,659.31
  6. Step 6: Final answer
    x = 184,497.63

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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.