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Finding the Fourth Proportional to 495.02, 683.04 and 308.36

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Solution

The fourth proportional to 495.02, 683.04 and 308.36 is: 425.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    495.02 : 683.04 = 308.36 : x
  2. Step 2: Convert to fraction form
    495.02/683.04 = 308.36/x
  3. Step 3: Cross multiply
    495.02x = 683.04 × 308.36
  4. Step 4: Simplify right side
    495.02x = 210,622.21
  5. Step 5: Solve for x
    x = 210,622.21/495.02
  6. Step 6: Final answer
    x = 425.48

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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.