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Finding the Fourth Proportional to 484.77, 726.55 and 253.54

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Solution

The fourth proportional to 484.77, 726.55 and 253.54 is: 379.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    484.77 : 726.55 = 253.54 : x
  2. Step 2: Convert to fraction form
    484.77/726.55 = 253.54/x
  3. Step 3: Cross multiply
    484.77x = 726.55 × 253.54
  4. Step 4: Simplify right side
    484.77x = 184,209.49
  5. Step 5: Solve for x
    x = 184,209.49/484.77
  6. Step 6: Final answer
    x = 379.99

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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.