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Finding the Fourth Proportional to 377,644.05, 521,193.29 and 212,099.27

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Solution

The fourth proportional to 377,644.05, 521,193.29 and 212,099.27 is: 292,721.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,644.05 : 521,193.29 = 212,099.27 : x
  2. Step 2: Convert to fraction form
    377,644.05/521,193.29 = 212,099.27/x
  3. Step 3: Cross multiply
    377,644.05x = 521,193.29 × 212,099.27
  4. Step 4: Simplify right side
    377,644.05x = 110,544,712,671.44
  5. Step 5: Solve for x
    x = 110,544,712,671.44/377,644.05
  6. Step 6: Final answer
    x = 292,721.98

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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.