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Finding the Fourth Proportional to 455.55, 658.73 and 455.55

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Solution

The fourth proportional to 455.55, 658.73 and 455.55 is: 658.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    455.55 : 658.73 = 455.55 : x
  2. Step 2: Convert to fraction form
    455.55/658.73 = 455.55/x
  3. Step 3: Cross multiply
    455.55x = 658.73 × 455.55
  4. Step 4: Simplify right side
    455.55x = 300,082.17
  5. Step 5: Solve for x
    x = 300,082.17/455.55
  6. Step 6: Final answer
    x = 658.73

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.