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Finding the Fourth Proportional to 404,039, 606,146 and 154,721

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Solution

The fourth proportional to 404,039, 606,146 and 154,721 is: 232,115.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,039 : 606,146 = 154,721 : x
  2. Step 2: Convert to fraction form
    404,039/606,146 = 154,721/x
  3. Step 3: Cross multiply
    404,039x = 606,146 × 154,721
  4. Step 4: Simplify right side
    404,039x = 93,783,515,266
  5. Step 5: Solve for x
    x = 93,783,515,266/404,039
  6. Step 6: Final answer
    x = 232,115.01

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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.