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Finding the Fourth Proportional to 345,072.48, 517,661 and 108,392.92

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Solution

The fourth proportional to 345,072.48, 517,661 and 108,392.92 is: 162,605.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,072.48 : 517,661 = 108,392.92 : x
  2. Step 2: Convert to fraction form
    345,072.48/517,661 = 108,392.92/x
  3. Step 3: Cross multiply
    345,072.48x = 517,661 × 108,392.92
  4. Step 4: Simplify right side
    345,072.48x = 56,110,787,360.12
  5. Step 5: Solve for x
    x = 56,110,787,360.12/345,072.48
  6. Step 6: Final answer
    x = 162,605.80

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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.