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Finding the Fourth Proportional to 322.04, 482.59 and 275.50

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Solution

The fourth proportional to 322.04, 482.59 and 275.50 is: 412.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    322.04 : 482.59 = 275.50 : x
  2. Step 2: Convert to fraction form
    322.04/482.59 = 275.50/x
  3. Step 3: Cross multiply
    322.04x = 482.59 × 275.50
  4. Step 4: Simplify right side
    322.04x = 132,954.49
  5. Step 5: Solve for x
    x = 132,954.49/322.04
  6. Step 6: Final answer
    x = 412.85

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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.