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Finding the Fourth Proportional to 301.30, 450.10 and 240.54

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Solution

The fourth proportional to 301.30, 450.10 and 240.54 is: 359.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    301.30 : 450.10 = 240.54 : x
  2. Step 2: Convert to fraction form
    301.30/450.10 = 240.54/x
  3. Step 3: Cross multiply
    301.30x = 450.10 × 240.54
  4. Step 4: Simplify right side
    301.30x = 108,267.05
  5. Step 5: Solve for x
    x = 108,267.05/301.30
  6. Step 6: Final answer
    x = 359.33

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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.