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Finding the Fourth Proportional to 325,809.27, 488,648.30 and 89,175.87

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Solution

The fourth proportional to 325,809.27, 488,648.30 and 89,175.87 is: 133,745.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,809.27 : 488,648.30 = 89,175.87 : x
  2. Step 2: Convert to fraction form
    325,809.27/488,648.30 = 89,175.87/x
  3. Step 3: Cross multiply
    325,809.27x = 488,648.30 × 89,175.87
  4. Step 4: Simplify right side
    325,809.27x = 43,575,636,830.64
  5. Step 5: Solve for x
    x = 43,575,636,830.64/325,809.27
  6. Step 6: Final answer
    x = 133,745.85

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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.