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Finding the Fourth Proportional to 305.36, 456.10 and 303.76

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Solution

The fourth proportional to 305.36, 456.10 and 303.76 is: 453.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    305.36 : 456.10 = 303.76 : x
  2. Step 2: Convert to fraction form
    305.36/456.10 = 303.76/x
  3. Step 3: Cross multiply
    305.36x = 456.10 × 303.76
  4. Step 4: Simplify right side
    305.36x = 138,544.94
  5. Step 5: Solve for x
    x = 138,544.94/305.36
  6. Step 6: Final answer
    x = 453.71

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.