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Finding the Fourth Proportional to 488.09, 731.62 and 341.95

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Solution

The fourth proportional to 488.09, 731.62 and 341.95 is: 512.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    488.09 : 731.62 = 341.95 : x
  2. Step 2: Convert to fraction form
    488.09/731.62 = 341.95/x
  3. Step 3: Cross multiply
    488.09x = 731.62 × 341.95
  4. Step 4: Simplify right side
    488.09x = 250,174.89
  5. Step 5: Solve for x
    x = 250,174.89/488.09
  6. Step 6: Final answer
    x = 512.56

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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.