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Finding the Fourth Proportional to 453.28, 680.48 and 356.08

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Solution

The fourth proportional to 453.28, 680.48 and 356.08 is: 534.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    453.28 : 680.48 = 356.08 : x
  2. Step 2: Convert to fraction form
    453.28/680.48 = 356.08/x
  3. Step 3: Cross multiply
    453.28x = 680.48 × 356.08
  4. Step 4: Simplify right side
    453.28x = 242,305.32
  5. Step 5: Solve for x
    x = 242,305.32/453.28
  6. Step 6: Final answer
    x = 534.56

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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.