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Finding the Fourth Proportional to 300.53, 450.20 and 268.35

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Solution

The fourth proportional to 300.53, 450.20 and 268.35 is: 402.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    300.53 : 450.20 = 268.35 : x
  2. Step 2: Convert to fraction form
    300.53/450.20 = 268.35/x
  3. Step 3: Cross multiply
    300.53x = 450.20 × 268.35
  4. Step 4: Simplify right side
    300.53x = 120,809.83
  5. Step 5: Solve for x
    x = 120,809.83/300.53
  6. Step 6: Final answer
    x = 402.00

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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.