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Finding the Fourth Proportional to 283,551.75, 391,297.81 and 154,495.60

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Solution

The fourth proportional to 283,551.75, 391,297.81 and 154,495.60 is: 213,201.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,551.75 : 391,297.81 = 154,495.60 : x
  2. Step 2: Convert to fraction form
    283,551.75/391,297.81 = 154,495.60/x
  3. Step 3: Cross multiply
    283,551.75x = 391,297.81 × 154,495.60
  4. Step 4: Simplify right side
    283,551.75x = 60,453,789,548.40
  5. Step 5: Solve for x
    x = 60,453,789,548.40/283,551.75
  6. Step 6: Final answer
    x = 213,201.96

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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.