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Finding the Fourth Proportional to 383,469.80, 574,718.70 and 146,496.20

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Solution

The fourth proportional to 383,469.80, 574,718.70 and 146,496.20 is: 219,558.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,469.80 : 574,718.70 = 146,496.20 : x
  2. Step 2: Convert to fraction form
    383,469.80/574,718.70 = 146,496.20/x
  3. Step 3: Cross multiply
    383,469.80x = 574,718.70 × 146,496.20
  4. Step 4: Simplify right side
    383,469.80x = 84,194,105,618.94
  5. Step 5: Solve for x
    x = 84,194,105,618.94/383,469.80
  6. Step 6: Final answer
    x = 219,558.63

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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.