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Finding the Fourth Proportional to 488.46, 733.36 and 306.56

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Solution

The fourth proportional to 488.46, 733.36 and 306.56 is: 460.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    488.46 : 733.36 = 306.56 : x
  2. Step 2: Convert to fraction form
    488.46/733.36 = 306.56/x
  3. Step 3: Cross multiply
    488.46x = 733.36 × 306.56
  4. Step 4: Simplify right side
    488.46x = 224,818.84
  5. Step 5: Solve for x
    x = 224,818.84/488.46
  6. Step 6: Final answer
    x = 460.26

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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.