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Finding the Fourth Proportional to 328,574.36, 453,432.30 and 177,671

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Solution

The fourth proportional to 328,574.36, 453,432.30 and 177,671 is: 245,185.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,574.36 : 453,432.30 = 177,671 : x
  2. Step 2: Convert to fraction form
    328,574.36/453,432.30 = 177,671/x
  3. Step 3: Cross multiply
    328,574.36x = 453,432.30 × 177,671
  4. Step 4: Simplify right side
    328,574.36x = 80,561,770,173.30
  5. Step 5: Solve for x
    x = 80,561,770,173.30/328,574.36
  6. Step 6: Final answer
    x = 245,185.81

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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.