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Finding the Fourth Proportional to 330,049, 455,468.16 and 179,146

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Solution

The fourth proportional to 330,049, 455,468.16 and 179,146 is: 247,221.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,049 : 455,468.16 = 179,146 : x
  2. Step 2: Convert to fraction form
    330,049/455,468.16 = 179,146/x
  3. Step 3: Cross multiply
    330,049x = 455,468.16 × 179,146
  4. Step 4: Simplify right side
    330,049x = 81,595,298,991.36
  5. Step 5: Solve for x
    x = 81,595,298,991.36/330,049
  6. Step 6: Final answer
    x = 247,221.77

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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.