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Finding the Fourth Proportional to 404,020.32, 557,448.06 and 242,843.28

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Solution

The fourth proportional to 404,020.32, 557,448.06 and 242,843.28 is: 335,063.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,020.32 : 557,448.06 = 242,843.28 : x
  2. Step 2: Convert to fraction form
    404,020.32/557,448.06 = 242,843.28/x
  3. Step 3: Cross multiply
    404,020.32x = 557,448.06 × 242,843.28
  4. Step 4: Simplify right side
    404,020.32x = 135,372,515,320.04
  5. Step 5: Solve for x
    x = 135,372,515,320.04/404,020.32
  6. Step 6: Final answer
    x = 335,063.63

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1.5x scale

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.