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Finding the Fourth Proportional to 283,372.94, 391,160.73 and 187,911.74

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Solution

The fourth proportional to 283,372.94, 391,160.73 and 187,911.74 is: 259,388.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,372.94 : 391,160.73 = 187,911.74 : x
  2. Step 2: Convert to fraction form
    283,372.94/391,160.73 = 187,911.74/x
  3. Step 3: Cross multiply
    283,372.94x = 391,160.73 × 187,911.74
  4. Step 4: Simplify right side
    283,372.94x = 73,503,693,393.97
  5. Step 5: Solve for x
    x = 73,503,693,393.97/283,372.94
  6. Step 6: Final answer
    x = 259,388.54

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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.