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Finding the Fourth Proportional to 539,960.94, 809,963.55 and 185,218.92

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Solution

The fourth proportional to 539,960.94, 809,963.55 and 185,218.92 is: 277,835.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,960.94 : 809,963.55 = 185,218.92 : x
  2. Step 2: Convert to fraction form
    539,960.94/809,963.55 = 185,218.92/x
  3. Step 3: Cross multiply
    539,960.94x = 809,963.55 × 185,218.92
  4. Step 4: Simplify right side
    539,960.94x = 150,020,573,970.37
  5. Step 5: Solve for x
    x = 150,020,573,970.37/539,960.94
  6. Step 6: Final answer
    x = 277,835.97

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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.