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Finding the Fourth Proportional to 455.84, 629.08 and 351.04

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Solution

The fourth proportional to 455.84, 629.08 and 351.04 is: 484.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    455.84 : 629.08 = 351.04 : x
  2. Step 2: Convert to fraction form
    455.84/629.08 = 351.04/x
  3. Step 3: Cross multiply
    455.84x = 629.08 × 351.04
  4. Step 4: Simplify right side
    455.84x = 220,832.24
  5. Step 5: Solve for x
    x = 220,832.24/455.84
  6. Step 6: Final answer
    x = 484.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.