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Finding the Fourth Proportional to 284,103.20, 425,863.20 and 165,713.60

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Solution

The fourth proportional to 284,103.20, 425,863.20 and 165,713.60 is: 248,400.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,103.20 : 425,863.20 = 165,713.60 : x
  2. Step 2: Convert to fraction form
    284,103.20/425,863.20 = 165,713.60/x
  3. Step 3: Cross multiply
    284,103.20x = 425,863.20 × 165,713.60
  4. Step 4: Simplify right side
    284,103.20x = 70,571,323,979.52
  5. Step 5: Solve for x
    x = 70,571,323,979.52/284,103.20
  6. Step 6: Final answer
    x = 248,400.31

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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.