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Finding the Fourth Proportional to 253.37, 349.66 and 169.19

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Solution

The fourth proportional to 253.37, 349.66 and 169.19 is: 233.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    253.37 : 349.66 = 169.19 : x
  2. Step 2: Convert to fraction form
    253.37/349.66 = 169.19/x
  3. Step 3: Cross multiply
    253.37x = 349.66 × 169.19
  4. Step 4: Simplify right side
    253.37x = 59,159.43
  5. Step 5: Solve for x
    x = 59,159.43/253.37
  6. Step 6: Final answer
    x = 233.49

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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.