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Finding the Fourth Proportional to 484.53, 726.89 and 253.52

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Solution

The fourth proportional to 484.53, 726.89 and 253.52 is: 380.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    484.53 : 726.89 = 253.52 : x
  2. Step 2: Convert to fraction form
    484.53/726.89 = 253.52/x
  3. Step 3: Cross multiply
    484.53x = 726.89 × 253.52
  4. Step 4: Simplify right side
    484.53x = 184,281.15
  5. Step 5: Solve for x
    x = 184,281.15/484.53
  6. Step 6: Final answer
    x = 380.33

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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.