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Finding the Fourth Proportional to 546.14, 818.51 and 488.03

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Solution

The fourth proportional to 546.14, 818.51 and 488.03 is: 731.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    546.14 : 818.51 = 488.03 : x
  2. Step 2: Convert to fraction form
    546.14/818.51 = 488.03/x
  3. Step 3: Cross multiply
    546.14x = 818.51 × 488.03
  4. Step 4: Simplify right side
    546.14x = 399,450.90
  5. Step 5: Solve for x
    x = 399,450.90/546.14
  6. Step 6: Final answer
    x = 731.40

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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.