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Finding the Fourth Proportional to 330,469.59, 456,049.52 and 187,257.54

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Solution

The fourth proportional to 330,469.59, 456,049.52 and 187,257.54 is: 258,416.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,469.59 : 456,049.52 = 187,257.54 : x
  2. Step 2: Convert to fraction form
    330,469.59/456,049.52 = 187,257.54/x
  3. Step 3: Cross multiply
    330,469.59x = 456,049.52 × 187,257.54
  4. Step 4: Simplify right side
    330,469.59x = 85,398,710,297.09
  5. Step 5: Solve for x
    x = 85,398,710,297.09/330,469.59
  6. Step 6: Final answer
    x = 258,416.24

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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.