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Finding the Fourth Proportional to 245,355.94, 368,033.46 and 76,889.17

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Solution

The fourth proportional to 245,355.94, 368,033.46 and 76,889.17 is: 115,333.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,355.94 : 368,033.46 = 76,889.17 : x
  2. Step 2: Convert to fraction form
    245,355.94/368,033.46 = 76,889.17/x
  3. Step 3: Cross multiply
    245,355.94x = 368,033.46 × 76,889.17
  4. Step 4: Simplify right side
    245,355.94x = 28,297,787,271.63
  5. Step 5: Solve for x
    x = 28,297,787,271.63/245,355.94
  6. Step 6: Final answer
    x = 115,333.61

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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.