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Finding the Fourth Proportional to 219.03, 301.95 and 136.08

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Solution

The fourth proportional to 219.03, 301.95 and 136.08 is: 187.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    219.03 : 301.95 = 136.08 : x
  2. Step 2: Convert to fraction form
    219.03/301.95 = 136.08/x
  3. Step 3: Cross multiply
    219.03x = 301.95 × 136.08
  4. Step 4: Simplify right side
    219.03x = 41,089.36
  5. Step 5: Solve for x
    x = 41,089.36/219.03
  6. Step 6: Final answer
    x = 187.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.