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Finding the Fourth Proportional to 627.31, 940.31 and 301.99

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Solution

The fourth proportional to 627.31, 940.31 and 301.99 is: 452.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    627.31 : 940.31 = 301.99 : x
  2. Step 2: Convert to fraction form
    627.31/940.31 = 301.99/x
  3. Step 3: Cross multiply
    627.31x = 940.31 × 301.99
  4. Step 4: Simplify right side
    627.31x = 283,962.71
  5. Step 5: Solve for x
    x = 283,962.71/627.31
  6. Step 6: Final answer
    x = 452.67

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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.