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Finding the Fourth Proportional to 269,771.85, 372,285.22 and 148,913.21

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Solution

The fourth proportional to 269,771.85, 372,285.22 and 148,913.21 is: 205,500.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,771.85 : 372,285.22 = 148,913.21 : x
  2. Step 2: Convert to fraction form
    269,771.85/372,285.22 = 148,913.21/x
  3. Step 3: Cross multiply
    269,771.85x = 372,285.22 × 148,913.21
  4. Step 4: Simplify right side
    269,771.85x = 55,438,187,145.76
  5. Step 5: Solve for x
    x = 55,438,187,145.76/269,771.85
  6. Step 6: Final answer
    x = 205,500.27

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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.