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Finding the Fourth Proportional to 356,488.39, 491,945.48 and 195,335.65

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Solution

The fourth proportional to 356,488.39, 491,945.48 and 195,335.65 is: 269,558.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,488.39 : 491,945.48 = 195,335.65 : x
  2. Step 2: Convert to fraction form
    356,488.39/491,945.48 = 195,335.65/x
  3. Step 3: Cross multiply
    356,488.39x = 491,945.48 × 195,335.65
  4. Step 4: Simplify right side
    356,488.39x = 96,094,487,640.63
  5. Step 5: Solve for x
    x = 96,094,487,640.63/356,488.39
  6. Step 6: Final answer
    x = 269,558.54

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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.