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Finding the Fourth Proportional to 330,116, 455,565.60 and 179,213

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Solution

The fourth proportional to 330,116, 455,565.60 and 179,213 is: 247,316.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,116 : 455,565.60 = 179,213 : x
  2. Step 2: Convert to fraction form
    330,116/455,565.60 = 179,213/x
  3. Step 3: Cross multiply
    330,116x = 455,565.60 × 179,213
  4. Step 4: Simplify right side
    330,116x = 81,643,277,872.80
  5. Step 5: Solve for x
    x = 81,643,277,872.80/330,116
  6. Step 6: Final answer
    x = 247,316.94

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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.