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Finding the Fourth Proportional to 377,811.18, 521,377.02 and 208,044

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Solution

The fourth proportional to 377,811.18, 521,377.02 and 208,044 is: 287,099.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,811.18 : 521,377.02 = 208,044 : x
  2. Step 2: Convert to fraction form
    377,811.18/521,377.02 = 208,044/x
  3. Step 3: Cross multiply
    377,811.18x = 521,377.02 × 208,044
  4. Step 4: Simplify right side
    377,811.18x = 108,469,360,748.88
  5. Step 5: Solve for x
    x = 108,469,360,748.88/377,811.18
  6. Step 6: Final answer
    x = 287,099.39

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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.