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Finding the Fourth Proportional to 936.01, 1,404.42 and 358.75

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Solution

The fourth proportional to 936.01, 1,404.42 and 358.75 is: 538.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    936.01 : 1,404.42 = 358.75 : x
  2. Step 2: Convert to fraction form
    936.01/1,404.42 = 358.75/x
  3. Step 3: Cross multiply
    936.01x = 1,404.42 × 358.75
  4. Step 4: Simplify right side
    936.01x = 503,835.68
  5. Step 5: Solve for x
    x = 503,835.68/936.01
  6. Step 6: Final answer
    x = 538.28

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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.