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Finding the Fourth Proportional to 375,451.62, 518,123.76 and 203,371.44

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Solution

The fourth proportional to 375,451.62, 518,123.76 and 203,371.44 is: 280,652.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,451.62 : 518,123.76 = 203,371.44 : x
  2. Step 2: Convert to fraction form
    375,451.62/518,123.76 = 203,371.44/x
  3. Step 3: Cross multiply
    375,451.62x = 518,123.76 × 203,371.44
  4. Step 4: Simplify right side
    375,451.62x = 105,371,575,169.41
  5. Step 5: Solve for x
    x = 105,371,575,169.41/375,451.62
  6. Step 6: Final answer
    x = 280,652.87

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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.