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Finding the Fourth Proportional to 495.52, 683.16 and 355.84

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Solution

The fourth proportional to 495.52, 683.16 and 355.84 is: 490.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    495.52 : 683.16 = 355.84 : x
  2. Step 2: Convert to fraction form
    495.52/683.16 = 355.84/x
  3. Step 3: Cross multiply
    495.52x = 683.16 × 355.84
  4. Step 4: Simplify right side
    495.52x = 243,095.65
  5. Step 5: Solve for x
    x = 243,095.65/495.52
  6. Step 6: Final answer
    x = 490.59

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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.