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Finding the Fourth Proportional to 481.38, 660.05 and 434.58

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Solution

The fourth proportional to 481.38, 660.05 and 434.58 is: 595.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    481.38 : 660.05 = 434.58 : x
  2. Step 2: Convert to fraction form
    481.38/660.05 = 434.58/x
  3. Step 3: Cross multiply
    481.38x = 660.05 × 434.58
  4. Step 4: Simplify right side
    481.38x = 286,842.36
  5. Step 5: Solve for x
    x = 286,842.36/481.38
  6. Step 6: Final answer
    x = 595.88

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.