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Finding the Fourth Proportional to 450.93, 676.12 and 207.53

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Solution

The fourth proportional to 450.93, 676.12 and 207.53 is: 311.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    450.93 : 676.12 = 207.53 : x
  2. Step 2: Convert to fraction form
    450.93/676.12 = 207.53/x
  3. Step 3: Cross multiply
    450.93x = 676.12 × 207.53
  4. Step 4: Simplify right side
    450.93x = 140,315.18
  5. Step 5: Solve for x
    x = 140,315.18/450.93
  6. Step 6: Final answer
    x = 311.17

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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.