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Finding the Fourth Proportional to 488.44, 733.03 and 257.29

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Solution

The fourth proportional to 488.44, 733.03 and 257.29 is: 386.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    488.44 : 733.03 = 257.29 : x
  2. Step 2: Convert to fraction form
    488.44/733.03 = 257.29/x
  3. Step 3: Cross multiply
    488.44x = 733.03 × 257.29
  4. Step 4: Simplify right side
    488.44x = 188,598.81
  5. Step 5: Solve for x
    x = 188,598.81/488.44
  6. Step 6: Final answer
    x = 386.13

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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.