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Finding the Fourth Proportional to 396,006, 546,264.72 and 234,702.60

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Solution

The fourth proportional to 396,006, 546,264.72 and 234,702.60 is: 323,757.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,006 : 546,264.72 = 234,702.60 : x
  2. Step 2: Convert to fraction form
    396,006/546,264.72 = 234,702.60/x
  3. Step 3: Cross multiply
    396,006x = 546,264.72 × 234,702.60
  4. Step 4: Simplify right side
    396,006x = 128,209,750,072.27
  5. Step 5: Solve for x
    x = 128,209,750,072.27/396,006
  6. Step 6: Final answer
    x = 323,757.09

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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.