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Finding the Fourth Proportional to 253.59, 349.70 and 166.29

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Solution

The fourth proportional to 253.59, 349.70 and 166.29 is: 229.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    253.59 : 349.70 = 166.29 : x
  2. Step 2: Convert to fraction form
    253.59/349.70 = 166.29/x
  3. Step 3: Cross multiply
    253.59x = 349.70 × 166.29
  4. Step 4: Simplify right side
    253.59x = 58,150.78
  5. Step 5: Solve for x
    x = 58,150.78/253.59
  6. Step 6: Final answer
    x = 229.31

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