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Finding the Fourth Proportional to 449,687.20, 674,647.44 and 239,152

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Solution

The fourth proportional to 449,687.20, 674,647.44 and 239,152 is: 358,790.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,687.20 : 674,647.44 = 239,152 : x
  2. Step 2: Convert to fraction form
    449,687.20/674,647.44 = 239,152/x
  3. Step 3: Cross multiply
    449,687.20x = 674,647.44 × 239,152
  4. Step 4: Simplify right side
    449,687.20x = 161,343,284,570.88
  5. Step 5: Solve for x
    x = 161,343,284,570.88/449,687.20
  6. Step 6: Final answer
    x = 358,790.03

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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.