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Finding the Fourth Proportional to 255,506.04, 383,229.90 and 68,503

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Solution

The fourth proportional to 255,506.04, 383,229.90 and 68,503 is: 102,746.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,506.04 : 383,229.90 = 68,503 : x
  2. Step 2: Convert to fraction form
    255,506.04/383,229.90 = 68,503/x
  3. Step 3: Cross multiply
    255,506.04x = 383,229.90 × 68,503
  4. Step 4: Simplify right side
    255,506.04x = 26,252,397,839.70
  5. Step 5: Solve for x
    x = 26,252,397,839.70/255,506.04
  6. Step 6: Final answer
    x = 102,746.68

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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.