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Finding the Fourth Proportional to 450.27, 673.61 and 305.55

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Solution

The fourth proportional to 450.27, 673.61 and 305.55 is: 457.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    450.27 : 673.61 = 305.55 : x
  2. Step 2: Convert to fraction form
    450.27/673.61 = 305.55/x
  3. Step 3: Cross multiply
    450.27x = 673.61 × 305.55
  4. Step 4: Simplify right side
    450.27x = 205,820.01
  5. Step 5: Solve for x
    x = 205,820.01/450.27
  6. Step 6: Final answer
    x = 457.10

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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.