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Finding the Fourth Proportional to 328,980.88, 453,993.96 and 178,077.52

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Solution

The fourth proportional to 328,980.88, 453,993.96 and 178,077.52 is: 245,747.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,980.88 : 453,993.96 = 178,077.52 : x
  2. Step 2: Convert to fraction form
    328,980.88/453,993.96 = 178,077.52/x
  3. Step 3: Cross multiply
    328,980.88x = 453,993.96 × 178,077.52
  4. Step 4: Simplify right side
    328,980.88x = 80,846,118,491.78
  5. Step 5: Solve for x
    x = 80,846,118,491.78/328,980.88
  6. Step 6: Final answer
    x = 245,747.16

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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.