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Finding the Fourth Proportional to 187,290.45, 280,804.44 and 68,946.39

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Solution

The fourth proportional to 187,290.45, 280,804.44 and 68,946.39 is: 103,371.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,290.45 : 280,804.44 = 68,946.39 : x
  2. Step 2: Convert to fraction form
    187,290.45/280,804.44 = 68,946.39/x
  3. Step 3: Cross multiply
    187,290.45x = 280,804.44 × 68,946.39
  4. Step 4: Simplify right side
    187,290.45x = 19,360,452,433.97
  5. Step 5: Solve for x
    x = 19,360,452,433.97/187,290.45
  6. Step 6: Final answer
    x = 103,371.27

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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.