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Finding the Fourth Proportional to 949.88, 1,423.91 and 300.17

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Solution

The fourth proportional to 949.88, 1,423.91 and 300.17 is: 449.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    949.88 : 1,423.91 = 300.17 : x
  2. Step 2: Convert to fraction form
    949.88/1,423.91 = 300.17/x
  3. Step 3: Cross multiply
    949.88x = 1,423.91 × 300.17
  4. Step 4: Simplify right side
    949.88x = 427,410.00
  5. Step 5: Solve for x
    x = 427,410.00/949.88
  6. Step 6: Final answer
    x = 449.96

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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.