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Finding the Fourth Proportional to 495.86, 743.76 and 276.60

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Solution

The fourth proportional to 495.86, 743.76 and 276.60 is: 414.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    495.86 : 743.76 = 276.60 : x
  2. Step 2: Convert to fraction form
    495.86/743.76 = 276.60/x
  3. Step 3: Cross multiply
    495.86x = 743.76 × 276.60
  4. Step 4: Simplify right side
    495.86x = 205,724.02
  5. Step 5: Solve for x
    x = 205,724.02/495.86
  6. Step 6: Final answer
    x = 414.89

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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.