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Finding the Fourth Proportional to 303,338.94, 455,010.30 and 134,819.70

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Solution

The fourth proportional to 303,338.94, 455,010.30 and 134,819.70 is: 202,230.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,338.94 : 455,010.30 = 134,819.70 : x
  2. Step 2: Convert to fraction form
    303,338.94/455,010.30 = 134,819.70/x
  3. Step 3: Cross multiply
    303,338.94x = 455,010.30 × 134,819.70
  4. Step 4: Simplify right side
    303,338.94x = 61,344,352,142.91
  5. Step 5: Solve for x
    x = 61,344,352,142.91/303,338.94
  6. Step 6: Final answer
    x = 202,230.39

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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.