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Finding the Fourth Proportional to 383,390.80, 574,654.20 and 183,806.80

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Solution

The fourth proportional to 383,390.80, 574,654.20 and 183,806.80 is: 275,503.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,390.80 : 574,654.20 = 183,806.80 : x
  2. Step 2: Convert to fraction form
    383,390.80/574,654.20 = 183,806.80/x
  3. Step 3: Cross multiply
    383,390.80x = 574,654.20 × 183,806.80
  4. Step 4: Simplify right side
    383,390.80x = 105,625,349,608.56
  5. Step 5: Solve for x
    x = 105,625,349,608.56/383,390.80
  6. Step 6: Final answer
    x = 275,503.09

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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.