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Finding the Fourth Proportional to 231,010.56, 318,794.52 and 130,408.56

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Solution

The fourth proportional to 231,010.56, 318,794.52 and 130,408.56 is: 179,963.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,010.56 : 318,794.52 = 130,408.56 : x
  2. Step 2: Convert to fraction form
    231,010.56/318,794.52 = 130,408.56/x
  3. Step 3: Cross multiply
    231,010.56x = 318,794.52 × 130,408.56
  4. Step 4: Simplify right side
    231,010.56x = 41,573,534,289.09
  5. Step 5: Solve for x
    x = 41,573,534,289.09/231,010.56
  6. Step 6: Final answer
    x = 179,963.78

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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.