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Finding the Fourth Proportional to 325,822.80, 488,377.80 and 115,352.40

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Solution

The fourth proportional to 325,822.80, 488,377.80 and 115,352.40 is: 172,902.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,822.80 : 488,377.80 = 115,352.40 : x
  2. Step 2: Convert to fraction form
    325,822.80/488,377.80 = 115,352.40/x
  3. Step 3: Cross multiply
    325,822.80x = 488,377.80 × 115,352.40
  4. Step 4: Simplify right side
    325,822.80x = 56,335,551,336.72
  5. Step 5: Solve for x
    x = 56,335,551,336.72/325,822.80
  6. Step 6: Final answer
    x = 172,902.42

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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.