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Finding the Fourth Proportional to 328,672.50, 453,568.10 and 177,769.50

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Solution

The fourth proportional to 328,672.50, 453,568.10 and 177,769.50 is: 245,321.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,672.50 : 453,568.10 = 177,769.50 : x
  2. Step 2: Convert to fraction form
    328,672.50/453,568.10 = 177,769.50/x
  3. Step 3: Cross multiply
    328,672.50x = 453,568.10 × 177,769.50
  4. Step 4: Simplify right side
    328,672.50x = 80,630,573,464.10
  5. Step 5: Solve for x
    x = 80,630,573,464.10/328,672.50
  6. Step 6: Final answer
    x = 245,321.93

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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.