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Finding the Fourth Proportional to 603.47, 905.53 and 238.26

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Solution

The fourth proportional to 603.47, 905.53 and 238.26 is: 357.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    603.47 : 905.53 = 238.26 : x
  2. Step 2: Convert to fraction form
    603.47/905.53 = 238.26/x
  3. Step 3: Cross multiply
    603.47x = 905.53 × 238.26
  4. Step 4: Simplify right side
    603.47x = 215,749.73
  5. Step 5: Solve for x
    x = 215,749.73/603.47
  6. Step 6: Final answer
    x = 357.52

Related Problems

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Half scale
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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.