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Finding the Fourth Proportional to 391,625.63, 587,494.50 and 148,556.07

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Solution

The fourth proportional to 391,625.63, 587,494.50 and 148,556.07 is: 222,855.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,625.63 : 587,494.50 = 148,556.07 : x
  2. Step 2: Convert to fraction form
    391,625.63/587,494.50 = 148,556.07/x
  3. Step 3: Cross multiply
    391,625.63x = 587,494.50 × 148,556.07
  4. Step 4: Simplify right side
    391,625.63x = 87,275,874,066.62
  5. Step 5: Solve for x
    x = 87,275,874,066.62/391,625.63
  6. Step 6: Final answer
    x = 222,855.37

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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.