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Finding the Fourth Proportional to 375,871.57, 518,701.03 and 203,788.94

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Solution

The fourth proportional to 375,871.57, 518,701.03 and 203,788.94 is: 281,227.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,871.57 : 518,701.03 = 203,788.94 : x
  2. Step 2: Convert to fraction form
    375,871.57/518,701.03 = 203,788.94/x
  3. Step 3: Cross multiply
    375,871.57x = 518,701.03 × 203,788.94
  4. Step 4: Simplify right side
    375,871.57x = 105,705,529,977.63
  5. Step 5: Solve for x
    x = 105,705,529,977.63/375,871.57
  6. Step 6: Final answer
    x = 281,227.79

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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.