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Finding the Fourth Proportional to 325,820.80, 488,374.80 and 115,350.40

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Solution

The fourth proportional to 325,820.80, 488,374.80 and 115,350.40 is: 172,899.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,820.80 : 488,374.80 = 115,350.40 : x
  2. Step 2: Convert to fraction form
    325,820.80/488,374.80 = 115,350.40/x
  3. Step 3: Cross multiply
    325,820.80x = 488,374.80 × 115,350.40
  4. Step 4: Simplify right side
    325,820.80x = 56,334,228,529.92
  5. Step 5: Solve for x
    x = 56,334,228,529.92/325,820.80
  6. Step 6: Final answer
    x = 172,899.42

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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.