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Finding the Fourth Proportional to 396,090, 546,605.01 and 226,323.72

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Solution

The fourth proportional to 396,090, 546,605.01 and 226,323.72 is: 312,327.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,090 : 546,605.01 = 226,323.72 : x
  2. Step 2: Convert to fraction form
    396,090/546,605.01 = 226,323.72/x
  3. Step 3: Cross multiply
    396,090x = 546,605.01 × 226,323.72
  4. Step 4: Simplify right side
    396,090x = 123,709,679,233.84
  5. Step 5: Solve for x
    x = 123,709,679,233.84/396,090
  6. Step 6: Final answer
    x = 312,327.20

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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.