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Finding the Fourth Proportional to 330,081, 455,512.32 and 179,178

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Solution

The fourth proportional to 330,081, 455,512.32 and 179,178 is: 247,265.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,081 : 455,512.32 = 179,178 : x
  2. Step 2: Convert to fraction form
    330,081/455,512.32 = 179,178/x
  3. Step 3: Cross multiply
    330,081x = 455,512.32 × 179,178
  4. Step 4: Simplify right side
    330,081x = 81,617,786,472.96
  5. Step 5: Solve for x
    x = 81,617,786,472.96/330,081
  6. Step 6: Final answer
    x = 247,265.93

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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.