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Finding the Fourth Proportional to 315,179.56, 472,847.10 and 104,819.32

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Solution

The fourth proportional to 315,179.56, 472,847.10 and 104,819.32 is: 157,254.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,179.56 : 472,847.10 = 104,819.32 : x
  2. Step 2: Convert to fraction form
    315,179.56/472,847.10 = 104,819.32/x
  3. Step 3: Cross multiply
    315,179.56x = 472,847.10 × 104,819.32
  4. Step 4: Simplify right side
    315,179.56x = 49,563,511,485.97
  5. Step 5: Solve for x
    x = 49,563,511,485.97/315,179.56
  6. Step 6: Final answer
    x = 157,254.84

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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.