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Finding the Fourth Proportional to 443,878.50, 612,576.87 and 252,855.30

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Solution

The fourth proportional to 443,878.50, 612,576.87 and 252,855.30 is: 348,954.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,878.50 : 612,576.87 = 252,855.30 : x
  2. Step 2: Convert to fraction form
    443,878.50/612,576.87 = 252,855.30/x
  3. Step 3: Cross multiply
    443,878.50x = 612,576.87 × 252,855.30
  4. Step 4: Simplify right side
    443,878.50x = 154,893,308,236.91
  5. Step 5: Solve for x
    x = 154,893,308,236.91/443,878.50
  6. Step 6: Final answer
    x = 348,954.29

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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.