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Finding the Fourth Proportional to 269,391.69, 371,782.71 and 148,556.70

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Solution

The fourth proportional to 269,391.69, 371,782.71 and 148,556.70 is: 205,020.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,391.69 : 371,782.71 = 148,556.70 : x
  2. Step 2: Convert to fraction form
    269,391.69/371,782.71 = 148,556.70/x
  3. Step 3: Cross multiply
    269,391.69x = 371,782.71 × 148,556.70
  4. Step 4: Simplify right side
    269,391.69x = 55,230,812,514.66
  5. Step 5: Solve for x
    x = 55,230,812,514.66/269,391.69
  6. Step 6: Final answer
    x = 205,020.48

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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.