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Finding the Fourth Proportional to 322,787.35, 445,428.87 and 177,590.39

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Solution

The fourth proportional to 322,787.35, 445,428.87 and 177,590.39 is: 245,065.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,787.35 : 445,428.87 = 177,590.39 : x
  2. Step 2: Convert to fraction form
    322,787.35/445,428.87 = 177,590.39/x
  3. Step 3: Cross multiply
    322,787.35x = 445,428.87 × 177,590.39
  4. Step 4: Simplify right side
    322,787.35x = 79,103,886,740.56
  5. Step 5: Solve for x
    x = 79,103,886,740.56/322,787.35
  6. Step 6: Final answer
    x = 245,065.02

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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.