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Finding the Fourth Proportional to 283,425.27, 391,289.55 and 188,061.27

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Solution

The fourth proportional to 283,425.27, 391,289.55 and 188,061.27 is: 259,632.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,425.27 : 391,289.55 = 188,061.27 : x
  2. Step 2: Convert to fraction form
    283,425.27/391,289.55 = 188,061.27/x
  3. Step 3: Cross multiply
    283,425.27x = 391,289.55 × 188,061.27
  4. Step 4: Simplify right side
    283,425.27x = 73,586,409,710.73
  5. Step 5: Solve for x
    x = 73,586,409,710.73/283,425.27
  6. Step 6: Final answer
    x = 259,632.49

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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.