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Finding the Fourth Proportional to 269,375.60, 403,804.20 and 209,370.80

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Solution

The fourth proportional to 269,375.60, 403,804.20 and 209,370.80 is: 313,854.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,375.60 : 403,804.20 = 209,370.80 : x
  2. Step 2: Convert to fraction form
    269,375.60/403,804.20 = 209,370.80/x
  3. Step 3: Cross multiply
    269,375.60x = 403,804.20 × 209,370.80
  4. Step 4: Simplify right side
    269,375.60x = 84,544,808,397.36
  5. Step 5: Solve for x
    x = 84,544,808,397.36/269,375.60
  6. Step 6: Final answer
    x = 313,854.74

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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.