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Finding the Fourth Proportional to 285,682.08, 428,100.78 and 269,706.08

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Solution

The fourth proportional to 285,682.08, 428,100.78 and 269,706.08 is: 404,160.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,682.08 : 428,100.78 = 269,706.08 : x
  2. Step 2: Convert to fraction form
    285,682.08/428,100.78 = 269,706.08/x
  3. Step 3: Cross multiply
    285,682.08x = 428,100.78 × 269,706.08
  4. Step 4: Simplify right side
    285,682.08x = 115,461,383,218.74
  5. Step 5: Solve for x
    x = 115,461,383,218.74/285,682.08
  6. Step 6: Final answer
    x = 404,160.40

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1.5x scale

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.