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Finding the Fourth Proportional to 245,786.07, 368,678.92 and 68,293

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Solution

The fourth proportional to 245,786.07, 368,678.92 and 68,293 is: 102,439.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,786.07 : 368,678.92 = 68,293 : x
  2. Step 2: Convert to fraction form
    245,786.07/368,678.92 = 68,293/x
  3. Step 3: Cross multiply
    245,786.07x = 368,678.92 × 68,293
  4. Step 4: Simplify right side
    245,786.07x = 25,178,189,483.56
  5. Step 5: Solve for x
    x = 25,178,189,483.56/245,786.07
  6. Step 6: Final answer
    x = 102,439.45

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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.