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Finding the Fourth Proportional to 303.01, 453.81 and 258.60

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Solution

The fourth proportional to 303.01, 453.81 and 258.60 is: 387.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    303.01 : 453.81 = 258.60 : x
  2. Step 2: Convert to fraction form
    303.01/453.81 = 258.60/x
  3. Step 3: Cross multiply
    303.01x = 453.81 × 258.60
  4. Step 4: Simplify right side
    303.01x = 117,355.27
  5. Step 5: Solve for x
    x = 117,355.27/303.01
  6. Step 6: Final answer
    x = 387.30

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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.