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Finding the Fourth Proportional to 283,421.52, 391,284.36 and 188,057.52

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Solution

The fourth proportional to 283,421.52, 391,284.36 and 188,057.52 is: 259,627.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,421.52 : 391,284.36 = 188,057.52 : x
  2. Step 2: Convert to fraction form
    283,421.52/391,284.36 = 188,057.52/x
  3. Step 3: Cross multiply
    283,421.52x = 391,284.36 × 188,057.52
  4. Step 4: Simplify right side
    283,421.52x = 73,583,966,356.39
  5. Step 5: Solve for x
    x = 73,583,966,356.39/283,421.52
  6. Step 6: Final answer
    x = 259,627.31

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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.