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Finding the Fourth Proportional to 455.58, 683.50 and 236.28

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Solution

The fourth proportional to 455.58, 683.50 and 236.28 is: 354.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    455.58 : 683.50 = 236.28 : x
  2. Step 2: Convert to fraction form
    455.58/683.50 = 236.28/x
  3. Step 3: Cross multiply
    455.58x = 683.50 × 236.28
  4. Step 4: Simplify right side
    455.58x = 161,497.38
  5. Step 5: Solve for x
    x = 161,497.38/455.58
  6. Step 6: Final answer
    x = 354.49

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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.