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Finding the Fourth Proportional to 315,043.59, 434,771.64 and 179,100.48

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Solution

The fourth proportional to 315,043.59, 434,771.64 and 179,100.48 is: 247,165.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,043.59 : 434,771.64 = 179,100.48 : x
  2. Step 2: Convert to fraction form
    315,043.59/434,771.64 = 179,100.48/x
  3. Step 3: Cross multiply
    315,043.59x = 434,771.64 × 179,100.48
  4. Step 4: Simplify right side
    315,043.59x = 77,867,809,414.39
  5. Step 5: Solve for x
    x = 77,867,809,414.39/315,043.59
  6. Step 6: Final answer
    x = 247,165.19

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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.