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Finding the Fourth Proportional to 627.66, 941.80 and 353.88

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Solution

The fourth proportional to 627.66, 941.80 and 353.88 is: 530.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    627.66 : 941.80 = 353.88 : x
  2. Step 2: Convert to fraction form
    627.66/941.80 = 353.88/x
  3. Step 3: Cross multiply
    627.66x = 941.80 × 353.88
  4. Step 4: Simplify right side
    627.66x = 333,284.18
  5. Step 5: Solve for x
    x = 333,284.18/627.66
  6. Step 6: Final answer
    x = 530.99

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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.