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Finding the Fourth Proportional to 375,458.60, 518,129.82 and 203,372.60

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Solution

The fourth proportional to 375,458.60, 518,129.82 and 203,372.60 is: 280,652.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,458.60 : 518,129.82 = 203,372.60 : x
  2. Step 2: Convert to fraction form
    375,458.60/518,129.82 = 203,372.60/x
  3. Step 3: Cross multiply
    375,458.60x = 518,129.82 × 203,372.60
  4. Step 4: Simplify right side
    375,458.60x = 105,373,408,630.93
  5. Step 5: Solve for x
    x = 105,373,408,630.93/375,458.60
  6. Step 6: Final answer
    x = 280,652.54

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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.