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Finding the Fourth Proportional to 188,321.70, 259,885.83 and 102,282.37

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Solution

The fourth proportional to 188,321.70, 259,885.83 and 102,282.37 is: 141,150.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,321.70 : 259,885.83 = 102,282.37 : x
  2. Step 2: Convert to fraction form
    188,321.70/259,885.83 = 102,282.37/x
  3. Step 3: Cross multiply
    188,321.70x = 259,885.83 × 102,282.37
  4. Step 4: Simplify right side
    188,321.70x = 26,581,737,101.26
  5. Step 5: Solve for x
    x = 26,581,737,101.26/188,321.70
  6. Step 6: Final answer
    x = 141,150.68

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1.5x scale

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.