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Finding the Fourth Proportional to 270.03, 404.55 and 148.17

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Solution

The fourth proportional to 270.03, 404.55 and 148.17 is: 221.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    270.03 : 404.55 = 148.17 : x
  2. Step 2: Convert to fraction form
    270.03/404.55 = 148.17/x
  3. Step 3: Cross multiply
    270.03x = 404.55 × 148.17
  4. Step 4: Simplify right side
    270.03x = 59,942.17
  5. Step 5: Solve for x
    x = 59,942.17/270.03
  6. Step 6: Final answer
    x = 221.98

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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.