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Finding the Fourth Proportional to 302.99, 453.92 and 253.94

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Solution

The fourth proportional to 302.99, 453.92 and 253.94 is: 380.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    302.99 : 453.92 = 253.94 : x
  2. Step 2: Convert to fraction form
    302.99/453.92 = 253.94/x
  3. Step 3: Cross multiply
    302.99x = 453.92 × 253.94
  4. Step 4: Simplify right side
    302.99x = 115,264.91
  5. Step 5: Solve for x
    x = 115,264.91/302.99
  6. Step 6: Final answer
    x = 380.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.