Home / 325,821.40-488,732.10-115,480.60

Finding the Fourth Proportional to 325,821.40, 488,732.10 and 115,480.60

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Solution

The fourth proportional to 325,821.40, 488,732.10 and 115,480.60 is: 173,220.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,821.40 : 488,732.10 = 115,480.60 : x
  2. Step 2: Convert to fraction form
    325,821.40/488,732.10 = 115,480.60/x
  3. Step 3: Cross multiply
    325,821.40x = 488,732.10 × 115,480.60
  4. Step 4: Simplify right side
    325,821.40x = 56,439,076,147.26
  5. Step 5: Solve for x
    x = 56,439,076,147.26/325,821.40
  6. Step 6: Final answer
    x = 173,220.90

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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.