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Finding the Fourth Proportional to 303.59, 453.26 and 274.88

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Solution

The fourth proportional to 303.59, 453.26 and 274.88 is: 410.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    303.59 : 453.26 = 274.88 : x
  2. Step 2: Convert to fraction form
    303.59/453.26 = 274.88/x
  3. Step 3: Cross multiply
    303.59x = 453.26 × 274.88
  4. Step 4: Simplify right side
    303.59x = 124,591.87
  5. Step 5: Solve for x
    x = 124,591.87/303.59
  6. Step 6: Final answer
    x = 410.39

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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.