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Finding the Fourth Proportional to 328,375.36, 453,157.32 and 177,472

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Solution

The fourth proportional to 328,375.36, 453,157.32 and 177,472 is: 244,910.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,375.36 : 453,157.32 = 177,472 : x
  2. Step 2: Convert to fraction form
    328,375.36/453,157.32 = 177,472/x
  3. Step 3: Cross multiply
    328,375.36x = 453,157.32 × 177,472
  4. Step 4: Simplify right side
    328,375.36x = 80,422,735,895.04
  5. Step 5: Solve for x
    x = 80,422,735,895.04/328,375.36
  6. Step 6: Final answer
    x = 244,910.99

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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.