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Finding the Fourth Proportional to 322.17, 482.00 and 270.51

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Solution

The fourth proportional to 322.17, 482.00 and 270.51 is: 404.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    322.17 : 482.00 = 270.51 : x
  2. Step 2: Convert to fraction form
    322.17/482.00 = 270.51/x
  3. Step 3: Cross multiply
    322.17x = 482.00 × 270.51
  4. Step 4: Simplify right side
    322.17x = 130,384.47
  5. Step 5: Solve for x
    x = 130,384.47/322.17
  6. Step 6: Final answer
    x = 404.71

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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.