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Finding the Fourth Proportional to 303, 455.74 and 276.76

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Solution

The fourth proportional to 303, 455.74 and 276.76 is: 416.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    303 : 455.74 = 276.76 : x
  2. Step 2: Convert to fraction form
    303/455.74 = 276.76/x
  3. Step 3: Cross multiply
    303x = 455.74 × 276.76
  4. Step 4: Simplify right side
    303x = 126,130.60
  5. Step 5: Solve for x
    x = 126,130.60/303
  6. Step 6: Final answer
    x = 416.27

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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.