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Finding the Fourth Proportional to 328,745.69, 453,669.05 and 177,842.69

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Solution

The fourth proportional to 328,745.69, 453,669.05 and 177,842.69 is: 245,422.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,745.69 : 453,669.05 = 177,842.69 : x
  2. Step 2: Convert to fraction form
    328,745.69/453,669.05 = 177,842.69/x
  3. Step 3: Cross multiply
    328,745.69x = 453,669.05 × 177,842.69
  4. Step 4: Simplify right side
    328,745.69x = 80,681,724,221.74
  5. Step 5: Solve for x
    x = 80,681,724,221.74/328,745.69
  6. Step 6: Final answer
    x = 245,422.91

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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.