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Finding the Fourth Proportional to 501.50, 748.41 and 446.82

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Solution

The fourth proportional to 501.50, 748.41 and 446.82 is: 666.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    501.50 : 748.41 = 446.82 : x
  2. Step 2: Convert to fraction form
    501.50/748.41 = 446.82/x
  3. Step 3: Cross multiply
    501.50x = 748.41 × 446.82
  4. Step 4: Simplify right side
    501.50x = 334,404.56
  5. Step 5: Solve for x
    x = 334,404.56/501.50
  6. Step 6: Final answer
    x = 666.81

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.