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Finding the Fourth Proportional to 603.48, 905.22 and 329.50

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Solution

The fourth proportional to 603.48, 905.22 and 329.50 is: 494.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    603.48 : 905.22 = 329.50 : x
  2. Step 2: Convert to fraction form
    603.48/905.22 = 329.50/x
  3. Step 3: Cross multiply
    603.48x = 905.22 × 329.50
  4. Step 4: Simplify right side
    603.48x = 298,263.82
  5. Step 5: Solve for x
    x = 298,263.82/603.48
  6. Step 6: Final answer
    x = 494.24

Related Problems

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Half scale
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Double scale
Find fourth proportional to 604.48, 906.71 and 330.50
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.