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Finding the Fourth Proportional to 284,874.80, 427,312.20 and 248,010.80

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Solution

The fourth proportional to 284,874.80, 427,312.20 and 248,010.80 is: 372,016.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,874.80 : 427,312.20 = 248,010.80 : x
  2. Step 2: Convert to fraction form
    284,874.80/427,312.20 = 248,010.80/x
  3. Step 3: Cross multiply
    284,874.80x = 427,312.20 × 248,010.80
  4. Step 4: Simplify right side
    284,874.80x = 105,978,040,571.76
  5. Step 5: Solve for x
    x = 105,978,040,571.76/284,874.80
  6. Step 6: Final answer
    x = 372,016.20

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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.