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Finding the Fourth Proportional to 404,340.20, 606,502 and 179,639.72

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Solution

The fourth proportional to 404,340.20, 606,502 and 179,639.72 is: 269,455.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,340.20 : 606,502 = 179,639.72 : x
  2. Step 2: Convert to fraction form
    404,340.20/606,502 = 179,639.72/x
  3. Step 3: Cross multiply
    404,340.20x = 606,502 × 179,639.72
  4. Step 4: Simplify right side
    404,340.20x = 108,951,849,459.44
  5. Step 5: Solve for x
    x = 108,951,849,459.44/404,340.20
  6. Step 6: Final answer
    x = 269,455.89

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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.