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Finding the Fourth Proportional to 377,889.88, 521,511.62 and 208,123.96

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Solution

The fourth proportional to 377,889.88, 521,511.62 and 208,123.96 is: 287,224.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,889.88 : 521,511.62 = 208,123.96 : x
  2. Step 2: Convert to fraction form
    377,889.88/521,511.62 = 208,123.96/x
  3. Step 3: Cross multiply
    377,889.88x = 521,511.62 × 208,123.96
  4. Step 4: Simplify right side
    377,889.88x = 108,539,063,540.42
  5. Step 5: Solve for x
    x = 108,539,063,540.42/377,889.88
  6. Step 6: Final answer
    x = 287,224.05

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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.