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Finding the Fourth Proportional to 255,747.78, 383,490.45 and 95,757.80

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Solution

The fourth proportional to 255,747.78, 383,490.45 and 95,757.80 is: 143,587.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,747.78 : 383,490.45 = 95,757.80 : x
  2. Step 2: Convert to fraction form
    255,747.78/383,490.45 = 95,757.80/x
  3. Step 3: Cross multiply
    255,747.78x = 383,490.45 × 95,757.80
  4. Step 4: Simplify right side
    255,747.78x = 36,722,199,895.56
  5. Step 5: Solve for x
    x = 36,722,199,895.56/255,747.78
  6. Step 6: Final answer
    x = 143,587.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.