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Finding the Fourth Proportional to 328,494, 453,321.72 and 177,591

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Solution

The fourth proportional to 328,494, 453,321.72 and 177,591 is: 245,075.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,494 : 453,321.72 = 177,591 : x
  2. Step 2: Convert to fraction form
    328,494/453,321.72 = 177,591/x
  3. Step 3: Cross multiply
    328,494x = 453,321.72 × 177,591
  4. Step 4: Simplify right side
    328,494x = 80,505,857,576.52
  5. Step 5: Solve for x
    x = 80,505,857,576.52/328,494
  6. Step 6: Final answer
    x = 245,075.58

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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.