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Finding the Fourth Proportional to 358.68, 535.11 and 303.96

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Solution

The fourth proportional to 358.68, 535.11 and 303.96 is: 453.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    358.68 : 535.11 = 303.96 : x
  2. Step 2: Convert to fraction form
    358.68/535.11 = 303.96/x
  3. Step 3: Cross multiply
    358.68x = 535.11 × 303.96
  4. Step 4: Simplify right side
    358.68x = 162,652.04
  5. Step 5: Solve for x
    x = 162,652.04/358.68
  6. Step 6: Final answer
    x = 453.47

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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.