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Finding the Fourth Proportional to 323,154.88, 484,513.62 and 112,678

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Solution

The fourth proportional to 323,154.88, 484,513.62 and 112,678 is: 168,940.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,154.88 : 484,513.62 = 112,678 : x
  2. Step 2: Convert to fraction form
    323,154.88/484,513.62 = 112,678/x
  3. Step 3: Cross multiply
    323,154.88x = 484,513.62 × 112,678
  4. Step 4: Simplify right side
    323,154.88x = 54,594,025,674.36
  5. Step 5: Solve for x
    x = 54,594,025,674.36/323,154.88
  6. Step 6: Final answer
    x = 168,940.74

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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.