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Finding the Fourth Proportional to 383,285.01, 574,963.02 and 130,480.55

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Solution

The fourth proportional to 383,285.01, 574,963.02 and 130,480.55 is: 195,732.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,285.01 : 574,963.02 = 130,480.55 : x
  2. Step 2: Convert to fraction form
    383,285.01/574,963.02 = 130,480.55/x
  3. Step 3: Cross multiply
    383,285.01x = 574,963.02 × 130,480.55
  4. Step 4: Simplify right side
    383,285.01x = 75,021,488,204.45
  5. Step 5: Solve for x
    x = 75,021,488,204.45/383,285.01
  6. Step 6: Final answer
    x = 195,732.90

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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.