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Finding the Fourth Proportional to 230,690.50, 318,372.33 and 130,107.94

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Solution

The fourth proportional to 230,690.50, 318,372.33 and 130,107.94 is: 179,559.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,690.50 : 318,372.33 = 130,107.94 : x
  2. Step 2: Convert to fraction form
    230,690.50/318,372.33 = 130,107.94/x
  3. Step 3: Cross multiply
    230,690.50x = 318,372.33 × 130,107.94
  4. Step 4: Simplify right side
    230,690.50x = 41,422,768,009.30
  5. Step 5: Solve for x
    x = 41,422,768,009.30/230,690.50
  6. Step 6: Final answer
    x = 179,559.92

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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.