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Finding the Fourth Proportional to 331,060, 496,687.92 and 190,919.20

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Solution

The fourth proportional to 331,060, 496,687.92 and 190,919.20 is: 286,435.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,060 : 496,687.92 = 190,919.20 : x
  2. Step 2: Convert to fraction form
    331,060/496,687.92 = 190,919.20/x
  3. Step 3: Cross multiply
    331,060x = 496,687.92 × 190,919.20
  4. Step 4: Simplify right side
    331,060x = 94,827,260,336.06
  5. Step 5: Solve for x
    x = 94,827,260,336.06/331,060
  6. Step 6: Final answer
    x = 286,435.27

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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.