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Finding the Fourth Proportional to 493.41, 679.72 and 337.89

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Solution

The fourth proportional to 493.41, 679.72 and 337.89 is: 465.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    493.41 : 679.72 = 337.89 : x
  2. Step 2: Convert to fraction form
    493.41/679.72 = 337.89/x
  3. Step 3: Cross multiply
    493.41x = 679.72 × 337.89
  4. Step 4: Simplify right side
    493.41x = 229,670.59
  5. Step 5: Solve for x
    x = 229,670.59/493.41
  6. Step 6: Final answer
    x = 465.48

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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.