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Finding the Fourth Proportional to 358.01, 536.44 and 266.24

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Solution

The fourth proportional to 358.01, 536.44 and 266.24 is: 398.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    358.01 : 536.44 = 266.24 : x
  2. Step 2: Convert to fraction form
    358.01/536.44 = 266.24/x
  3. Step 3: Cross multiply
    358.01x = 536.44 × 266.24
  4. Step 4: Simplify right side
    358.01x = 142,821.79
  5. Step 5: Solve for x
    x = 142,821.79/358.01
  6. Step 6: Final answer
    x = 398.93

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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.