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Finding the Fourth Proportional to 489,187.30, 733,853.85 and 173,617.78

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Solution

The fourth proportional to 489,187.30, 733,853.85 and 173,617.78 is: 260,452.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,187.30 : 733,853.85 = 173,617.78 : x
  2. Step 2: Convert to fraction form
    489,187.30/733,853.85 = 173,617.78/x
  3. Step 3: Cross multiply
    489,187.30x = 733,853.85 × 173,617.78
  4. Step 4: Simplify right side
    489,187.30x = 127,410,076,281.45
  5. Step 5: Solve for x
    x = 127,410,076,281.45/489,187.30
  6. Step 6: Final answer
    x = 260,452.54

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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.