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Finding the Fourth Proportional to 584.40, 876.42 and 199.56

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Solution

The fourth proportional to 584.40, 876.42 and 199.56 is: 299.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    584.40 : 876.42 = 199.56 : x
  2. Step 2: Convert to fraction form
    584.40/876.42 = 199.56/x
  3. Step 3: Cross multiply
    584.40x = 876.42 × 199.56
  4. Step 4: Simplify right side
    584.40x = 174,898.38
  5. Step 5: Solve for x
    x = 174,898.38/584.40
  6. Step 6: Final answer
    x = 299.28

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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.