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Finding the Fourth Proportional to 284,745.48, 392,883.48 and 170,001.78

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Solution

The fourth proportional to 284,745.48, 392,883.48 and 170,001.78 is: 234,563.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,745.48 : 392,883.48 = 170,001.78 : x
  2. Step 2: Convert to fraction form
    284,745.48/392,883.48 = 170,001.78/x
  3. Step 3: Cross multiply
    284,745.48x = 392,883.48 × 170,001.78
  4. Step 4: Simplify right side
    284,745.48x = 66,790,890,932.59
  5. Step 5: Solve for x
    x = 66,790,890,932.59/284,745.48
  6. Step 6: Final answer
    x = 234,563.48

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1.5x scale

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.