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Finding the Fourth Proportional to 330,112, 455,560.08 and 179,209

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Solution

The fourth proportional to 330,112, 455,560.08 and 179,209 is: 247,311.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,112 : 455,560.08 = 179,209 : x
  2. Step 2: Convert to fraction form
    330,112/455,560.08 = 179,209/x
  3. Step 3: Cross multiply
    330,112x = 455,560.08 × 179,209
  4. Step 4: Simplify right side
    330,112x = 81,640,466,376.72
  5. Step 5: Solve for x
    x = 81,640,466,376.72/330,112
  6. Step 6: Final answer
    x = 247,311.42

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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.