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Finding the Fourth Proportional to 329,045.20, 493,265.40 and 328,843.60

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Solution

The fourth proportional to 329,045.20, 493,265.40 and 328,843.60 is: 492,963.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,045.20 : 493,265.40 = 328,843.60 : x
  2. Step 2: Convert to fraction form
    329,045.20/493,265.40 = 328,843.60/x
  3. Step 3: Cross multiply
    329,045.20x = 493,265.40 × 328,843.60
  4. Step 4: Simplify right side
    329,045.20x = 162,207,169,891.44
  5. Step 5: Solve for x
    x = 162,207,169,891.44/329,045.20
  6. Step 6: Final answer
    x = 492,963.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.