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Finding the Fourth Proportional to 361,963.80, 543,037.92 and 255,555.03

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Solution

The fourth proportional to 361,963.80, 543,037.92 and 255,555.03 is: 383,397.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,963.80 : 543,037.92 = 255,555.03 : x
  2. Step 2: Convert to fraction form
    361,963.80/543,037.92 = 255,555.03/x
  3. Step 3: Cross multiply
    361,963.80x = 543,037.92 × 255,555.03
  4. Step 4: Simplify right side
    361,963.80x = 138,776,071,936.74
  5. Step 5: Solve for x
    x = 138,776,071,936.74/361,963.80
  6. Step 6: Final answer
    x = 383,397.65

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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.