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Finding the Fourth Proportional to 219.60, 303.08 and 141.03

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Solution

The fourth proportional to 219.60, 303.08 and 141.03 is: 194.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    219.60 : 303.08 = 141.03 : x
  2. Step 2: Convert to fraction form
    219.60/303.08 = 141.03/x
  3. Step 3: Cross multiply
    219.60x = 303.08 × 141.03
  4. Step 4: Simplify right side
    219.60x = 42,742.67
  5. Step 5: Solve for x
    x = 42,742.67/219.60
  6. Step 6: Final answer
    x = 194.64

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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.