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Finding the Fourth Proportional to 483.36, 666.36 and 343.04

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Solution

The fourth proportional to 483.36, 666.36 and 343.04 is: 472.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    483.36 : 666.36 = 343.04 : x
  2. Step 2: Convert to fraction form
    483.36/666.36 = 343.04/x
  3. Step 3: Cross multiply
    483.36x = 666.36 × 343.04
  4. Step 4: Simplify right side
    483.36x = 228,588.13
  5. Step 5: Solve for x
    x = 228,588.13/483.36
  6. Step 6: Final answer
    x = 472.91

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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.