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Finding the Fourth Proportional to 546.55, 818.74 and 353.77

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Solution

The fourth proportional to 546.55, 818.74 and 353.77 is: 529.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    546.55 : 818.74 = 353.77 : x
  2. Step 2: Convert to fraction form
    546.55/818.74 = 353.77/x
  3. Step 3: Cross multiply
    546.55x = 818.74 × 353.77
  4. Step 4: Simplify right side
    546.55x = 289,645.65
  5. Step 5: Solve for x
    x = 289,645.65/546.55
  6. Step 6: Final answer
    x = 529.95

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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.