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Finding the Fourth Proportional to 245,481.36, 368,222.49 and 77,014.98

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Solution

The fourth proportional to 245,481.36, 368,222.49 and 77,014.98 is: 115,522.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,481.36 : 368,222.49 = 77,014.98 : x
  2. Step 2: Convert to fraction form
    245,481.36/368,222.49 = 77,014.98/x
  3. Step 3: Cross multiply
    245,481.36x = 368,222.49 × 77,014.98
  4. Step 4: Simplify right side
    245,481.36x = 28,358,647,702.90
  5. Step 5: Solve for x
    x = 28,358,647,702.90/245,481.36
  6. Step 6: Final answer
    x = 115,522.61

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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.