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Finding the Fourth Proportional to 333.63, 502.45 and 253.04

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Solution

The fourth proportional to 333.63, 502.45 and 253.04 is: 381.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    333.63 : 502.45 = 253.04 : x
  2. Step 2: Convert to fraction form
    333.63/502.45 = 253.04/x
  3. Step 3: Cross multiply
    333.63x = 502.45 × 253.04
  4. Step 4: Simplify right side
    333.63x = 127,136.80
  5. Step 5: Solve for x
    x = 127,136.80/333.63
  6. Step 6: Final answer
    x = 381.07

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.