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Finding the Fourth Proportional to 253.83, 349.51 and 230.37

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Solution

The fourth proportional to 253.83, 349.51 and 230.37 is: 317.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    253.83 : 349.51 = 230.37 : x
  2. Step 2: Convert to fraction form
    253.83/349.51 = 230.37/x
  3. Step 3: Cross multiply
    253.83x = 349.51 × 230.37
  4. Step 4: Simplify right side
    253.83x = 80,516.62
  5. Step 5: Solve for x
    x = 80,516.62/253.83
  6. Step 6: Final answer
    x = 317.21

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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.