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Finding the Fourth Proportional to 337.69, 464.89 and 290.82

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Solution

The fourth proportional to 337.69, 464.89 and 290.82 is: 400.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    337.69 : 464.89 = 290.82 : x
  2. Step 2: Convert to fraction form
    337.69/464.89 = 290.82/x
  3. Step 3: Cross multiply
    337.69x = 464.89 × 290.82
  4. Step 4: Simplify right side
    337.69x = 135,196.95
  5. Step 5: Solve for x
    x = 135,196.95/337.69
  6. Step 6: Final answer
    x = 400.35

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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.