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Finding the Fourth Proportional to 358.10, 536.70 and 266.06

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Solution

The fourth proportional to 358.10, 536.70 and 266.06 is: 398.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    358.10 : 536.70 = 266.06 : x
  2. Step 2: Convert to fraction form
    358.10/536.70 = 266.06/x
  3. Step 3: Cross multiply
    358.10x = 536.70 × 266.06
  4. Step 4: Simplify right side
    358.10x = 142,794.40
  5. Step 5: Solve for x
    x = 142,794.40/358.10
  6. Step 6: Final answer
    x = 398.76

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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.