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Finding the Fourth Proportional to 115,794, 173,691 and 28,242

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Solution

The fourth proportional to 115,794, 173,691 and 28,242 is: 42,363

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,794 : 173,691 = 28,242 : x
  2. Step 2: Convert to fraction form
    115,794/173,691 = 28,242/x
  3. Step 3: Cross multiply
    115,794x = 173,691 × 28,242
  4. Step 4: Simplify right side
    115,794x = 4,905,381,222
  5. Step 5: Solve for x
    x = 4,905,381,222/115,794
  6. Step 6: Final answer
    x = 42,363

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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.