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Finding the Fourth Proportional to 331,137.60, 496,911.60 and 173,479.20

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Solution

The fourth proportional to 331,137.60, 496,911.60 and 173,479.20 is: 260,326.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,137.60 : 496,911.60 = 173,479.20 : x
  2. Step 2: Convert to fraction form
    331,137.60/496,911.60 = 173,479.20/x
  3. Step 3: Cross multiply
    331,137.60x = 496,911.60 × 173,479.20
  4. Step 4: Simplify right side
    331,137.60x = 86,203,826,838.72
  5. Step 5: Solve for x
    x = 86,203,826,838.72/331,137.60
  6. Step 6: Final answer
    x = 260,326.30

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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.