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Finding the Fourth Proportional to 269,658.78, 372,054.87 and 162,213.90

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Solution

The fourth proportional to 269,658.78, 372,054.87 and 162,213.90 is: 223,810.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,658.78 : 372,054.87 = 162,213.90 : x
  2. Step 2: Convert to fraction form
    269,658.78/372,054.87 = 162,213.90/x
  3. Step 3: Cross multiply
    269,658.78x = 372,054.87 × 162,213.90
  4. Step 4: Simplify right side
    269,658.78x = 60,352,471,476.69
  5. Step 5: Solve for x
    x = 60,352,471,476.69/269,658.78
  6. Step 6: Final answer
    x = 223,810.52

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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.