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Finding the Fourth Proportional to 303,310.20, 418,702.28 and 195,932.56

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Solution

The fourth proportional to 303,310.20, 418,702.28 and 195,932.56 is: 270,473.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,310.20 : 418,702.28 = 195,932.56 : x
  2. Step 2: Convert to fraction form
    303,310.20/418,702.28 = 195,932.56/x
  3. Step 3: Cross multiply
    303,310.20x = 418,702.28 × 195,932.56
  4. Step 4: Simplify right side
    303,310.20x = 82,037,409,598.24
  5. Step 5: Solve for x
    x = 82,037,409,598.24/303,310.20
  6. Step 6: Final answer
    x = 270,473.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.