Home / 421,183.20-581,234.31-230,196.66

Finding the Fourth Proportional to 421,183.20, 581,234.31 and 230,196.66

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Solution

The fourth proportional to 421,183.20, 581,234.31 and 230,196.66 is: 317,672.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,183.20 : 581,234.31 = 230,196.66 : x
  2. Step 2: Convert to fraction form
    421,183.20/581,234.31 = 230,196.66/x
  3. Step 3: Cross multiply
    421,183.20x = 581,234.31 × 230,196.66
  4. Step 4: Simplify right side
    421,183.20x = 133,798,196,839.41
  5. Step 5: Solve for x
    x = 133,798,196,839.41/421,183.20
  6. Step 6: Final answer
    x = 317,672.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.