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Finding the Fourth Proportional to 603.72, 905.58 and 238.44

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Solution

The fourth proportional to 603.72, 905.58 and 238.44 is: 357.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    603.72 : 905.58 = 238.44 : x
  2. Step 2: Convert to fraction form
    603.72/905.58 = 238.44/x
  3. Step 3: Cross multiply
    603.72x = 905.58 × 238.44
  4. Step 4: Simplify right side
    603.72x = 215,926.50
  5. Step 5: Solve for x
    x = 215,926.50/603.72
  6. Step 6: Final answer
    x = 357.66

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Double scale
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Similar ratio
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1.5x scale

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.