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Finding the Fourth Proportional to 331,184.64, 496,980.48 and 131,470.08

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Solution

The fourth proportional to 331,184.64, 496,980.48 and 131,470.08 is: 197,285.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,184.64 : 496,980.48 = 131,470.08 : x
  2. Step 2: Convert to fraction form
    331,184.64/496,980.48 = 131,470.08/x
  3. Step 3: Cross multiply
    331,184.64x = 496,980.48 × 131,470.08
  4. Step 4: Simplify right side
    331,184.64x = 65,338,063,464.04
  5. Step 5: Solve for x
    x = 65,338,063,464.04/331,184.64
  6. Step 6: Final answer
    x = 197,285.91

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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.