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Finding the Fourth Proportional to 330,051, 455,478.54 and 179,147.64

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Solution

The fourth proportional to 330,051, 455,478.54 and 179,147.64 is: 247,228.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,051 : 455,478.54 = 179,147.64 : x
  2. Step 2: Convert to fraction form
    330,051/455,478.54 = 179,147.64/x
  3. Step 3: Cross multiply
    330,051x = 455,478.54 × 179,147.64
  4. Step 4: Simplify right side
    330,051x = 81,597,905,511.65
  5. Step 5: Solve for x
    x = 81,597,905,511.65/330,051
  6. Step 6: Final answer
    x = 247,228.17

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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.