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Finding the Fourth Proportional to 315,198.88, 434,956.70 and 179,265.89

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Solution

The fourth proportional to 315,198.88, 434,956.70 and 179,265.89 is: 247,376.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,198.88 : 434,956.70 = 179,265.89 : x
  2. Step 2: Convert to fraction form
    315,198.88/434,956.70 = 179,265.89/x
  3. Step 3: Cross multiply
    315,198.88x = 434,956.70 × 179,265.89
  4. Step 4: Simplify right side
    315,198.88x = 77,972,901,472.52
  5. Step 5: Solve for x
    x = 77,972,901,472.52/315,198.88
  6. Step 6: Final answer
    x = 247,376.84

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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.