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Finding the Fourth Proportional to 269,878.80, 404,818.20 and 265,942.20

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Solution

The fourth proportional to 269,878.80, 404,818.20 and 265,942.20 is: 398,913.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,878.80 : 404,818.20 = 265,942.20 : x
  2. Step 2: Convert to fraction form
    269,878.80/404,818.20 = 265,942.20/x
  3. Step 3: Cross multiply
    269,878.80x = 404,818.20 × 265,942.20
  4. Step 4: Simplify right side
    269,878.80x = 107,658,242,708.04
  5. Step 5: Solve for x
    x = 107,658,242,708.04/269,878.80
  6. Step 6: Final answer
    x = 398,913.30

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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.