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Finding the Fourth Proportional to 476.14, 713.81 and 187.38

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Solution

The fourth proportional to 476.14, 713.81 and 187.38 is: 280.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    476.14 : 713.81 = 187.38 : x
  2. Step 2: Convert to fraction form
    476.14/713.81 = 187.38/x
  3. Step 3: Cross multiply
    476.14x = 713.81 × 187.38
  4. Step 4: Simplify right side
    476.14x = 133,749.21
  5. Step 5: Solve for x
    x = 133,749.21/476.14
  6. Step 6: Final answer
    x = 280.90

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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.