Home / 325,795.40-488,520.30-115,440.20

Finding the Fourth Proportional to 325,795.40, 488,520.30 and 115,440.20

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Solution

The fourth proportional to 325,795.40, 488,520.30 and 115,440.20 is: 173,099.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,795.40 : 488,520.30 = 115,440.20 : x
  2. Step 2: Convert to fraction form
    325,795.40/488,520.30 = 115,440.20/x
  3. Step 3: Cross multiply
    325,795.40x = 488,520.30 × 115,440.20
  4. Step 4: Simplify right side
    325,795.40x = 56,394,881,136.06
  5. Step 5: Solve for x
    x = 56,394,881,136.06/325,795.40
  6. Step 6: Final answer
    x = 173,099.07

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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.