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Finding the Fourth Proportional to 951.99, 1,428.80 and 375.27

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Solution

The fourth proportional to 951.99, 1,428.80 and 375.27 is: 563.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    951.99 : 1,428.80 = 375.27 : x
  2. Step 2: Convert to fraction form
    951.99/1,428.80 = 375.27/x
  3. Step 3: Cross multiply
    951.99x = 1,428.80 × 375.27
  4. Step 4: Simplify right side
    951.99x = 536,183.90
  5. Step 5: Solve for x
    x = 536,183.90/951.99
  6. Step 6: Final answer
    x = 563.22

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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.