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Finding the Fourth Proportional to 172,247.45, 258,354.47 and 52,305.44

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Solution

The fourth proportional to 172,247.45, 258,354.47 and 52,305.44 is: 78,453.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,247.45 : 258,354.47 = 52,305.44 : x
  2. Step 2: Convert to fraction form
    172,247.45/258,354.47 = 52,305.44/x
  3. Step 3: Cross multiply
    172,247.45x = 258,354.47 × 52,305.44
  4. Step 4: Simplify right side
    172,247.45x = 13,513,342,676.02
  5. Step 5: Solve for x
    x = 13,513,342,676.02/172,247.45
  6. Step 6: Final answer
    x = 78,453.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.