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Finding the Fourth Proportional to 476.04, 712.74 and 329.46

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Solution

The fourth proportional to 476.04, 712.74 and 329.46 is: 493.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    476.04 : 712.74 = 329.46 : x
  2. Step 2: Convert to fraction form
    476.04/712.74 = 329.46/x
  3. Step 3: Cross multiply
    476.04x = 712.74 × 329.46
  4. Step 4: Simplify right side
    476.04x = 234,819.32
  5. Step 5: Solve for x
    x = 234,819.32/476.04
  6. Step 6: Final answer
    x = 493.28

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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.