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Finding the Fourth Proportional to 331,017.60, 496,731.60 and 173,359.20

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Solution

The fourth proportional to 331,017.60, 496,731.60 and 173,359.20 is: 260,146.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,017.60 : 496,731.60 = 173,359.20 : x
  2. Step 2: Convert to fraction form
    331,017.60/496,731.60 = 173,359.20/x
  3. Step 3: Cross multiply
    331,017.60x = 496,731.60 × 173,359.20
  4. Step 4: Simplify right side
    331,017.60x = 86,112,992,790.72
  5. Step 5: Solve for x
    x = 86,112,992,790.72/331,017.60
  6. Step 6: Final answer
    x = 260,146.27

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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.