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Finding the Fourth Proportional to 364.45, 502.82 and 253.89

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Solution

The fourth proportional to 364.45, 502.82 and 253.89 is: 350.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    364.45 : 502.82 = 253.89 : x
  2. Step 2: Convert to fraction form
    364.45/502.82 = 253.89/x
  3. Step 3: Cross multiply
    364.45x = 502.82 × 253.89
  4. Step 4: Simplify right side
    364.45x = 127,660.50
  5. Step 5: Solve for x
    x = 127,660.50/364.45
  6. Step 6: Final answer
    x = 350.28

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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.