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Finding the Fourth Proportional to 264,576.12, 396,918.84 and 87,093.78

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Solution

The fourth proportional to 264,576.12, 396,918.84 and 87,093.78 is: 130,658.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,576.12 : 396,918.84 = 87,093.78 : x
  2. Step 2: Convert to fraction form
    264,576.12/396,918.84 = 87,093.78/x
  3. Step 3: Cross multiply
    264,576.12x = 396,918.84 × 87,093.78
  4. Step 4: Simplify right side
    264,576.12x = 34,569,162,128.82
  5. Step 5: Solve for x
    x = 34,569,162,128.82/264,576.12
  6. Step 6: Final answer
    x = 130,658.66

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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.