Home / 325,821.20-488,731.80-302,201.60

Finding the Fourth Proportional to 325,821.20, 488,731.80 and 302,201.60

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Solution

The fourth proportional to 325,821.20, 488,731.80 and 302,201.60 is: 453,302.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,821.20 : 488,731.80 = 302,201.60 : x
  2. Step 2: Convert to fraction form
    325,821.20/488,731.80 = 302,201.60/x
  3. Step 3: Cross multiply
    325,821.20x = 488,731.80 × 302,201.60
  4. Step 4: Simplify right side
    325,821.20x = 147,695,531,930.88
  5. Step 5: Solve for x
    x = 147,695,531,930.88/325,821.20
  6. Step 6: Final answer
    x = 453,302.40

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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.