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Finding the Fourth Proportional to 389,495.37, 537,788.31 and 251,755.83

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Solution

The fourth proportional to 389,495.37, 537,788.31 and 251,755.83 is: 347,607.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,495.37 : 537,788.31 = 251,755.83 : x
  2. Step 2: Convert to fraction form
    389,495.37/537,788.31 = 251,755.83/x
  3. Step 3: Cross multiply
    389,495.37x = 537,788.31 × 251,755.83
  4. Step 4: Simplify right side
    389,495.37x = 135,391,342,348.35
  5. Step 5: Solve for x
    x = 135,391,342,348.35/389,495.37
  6. Step 6: Final answer
    x = 347,607.06

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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.