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Finding the Fourth Proportional to 403,854.60, 557,360.82 and 242,761.80

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Solution

The fourth proportional to 403,854.60, 557,360.82 and 242,761.80 is: 335,036.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,854.60 : 557,360.82 = 242,761.80 : x
  2. Step 2: Convert to fraction form
    403,854.60/557,360.82 = 242,761.80/x
  3. Step 3: Cross multiply
    403,854.60x = 557,360.82 × 242,761.80
  4. Step 4: Simplify right side
    403,854.60x = 135,305,915,912.68
  5. Step 5: Solve for x
    x = 135,305,915,912.68/403,854.60
  6. Step 6: Final answer
    x = 335,036.21

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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.