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Finding the Fourth Proportional to 325,808.40, 488,712.60 and 115,467.60

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Solution

The fourth proportional to 325,808.40, 488,712.60 and 115,467.60 is: 173,201.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,808.40 : 488,712.60 = 115,467.60 : x
  2. Step 2: Convert to fraction form
    325,808.40/488,712.60 = 115,467.60/x
  3. Step 3: Cross multiply
    325,808.40x = 488,712.60 × 115,467.60
  4. Step 4: Simplify right side
    325,808.40x = 56,430,471,011.76
  5. Step 5: Solve for x
    x = 56,430,471,011.76/325,808.40
  6. Step 6: Final answer
    x = 173,201.40

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