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Finding the Fourth Proportional to 443,553.10, 612,103.46 and 239,604.02

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Solution

The fourth proportional to 443,553.10, 612,103.46 and 239,604.02 is: 330,653.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,553.10 : 612,103.46 = 239,604.02 : x
  2. Step 2: Convert to fraction form
    443,553.10/612,103.46 = 239,604.02/x
  3. Step 3: Cross multiply
    443,553.10x = 612,103.46 × 239,604.02
  4. Step 4: Simplify right side
    443,553.10x = 146,662,449,671.91
  5. Step 5: Solve for x
    x = 146,662,449,671.91/443,553.10
  6. Step 6: Final answer
    x = 330,653.65

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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.