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Finding the Fourth Proportional to 283,422.27, 391,285.40 and 188,058.27

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Solution

The fourth proportional to 283,422.27, 391,285.40 and 188,058.27 is: 259,628.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,422.27 : 391,285.40 = 188,058.27 : x
  2. Step 2: Convert to fraction form
    283,422.27/391,285.40 = 188,058.27/x
  3. Step 3: Cross multiply
    283,422.27x = 391,285.40 × 188,058.27
  4. Step 4: Simplify right side
    283,422.27x = 73,584,454,459.97
  5. Step 5: Solve for x
    x = 73,584,454,459.97/283,422.27
  6. Step 6: Final answer
    x = 259,628.34

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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.