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Finding the Fourth Proportional to 357.92, 533.88 and 325.12

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Solution

The fourth proportional to 357.92, 533.88 and 325.12 is: 484.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    357.92 : 533.88 = 325.12 : x
  2. Step 2: Convert to fraction form
    357.92/533.88 = 325.12/x
  3. Step 3: Cross multiply
    357.92x = 533.88 × 325.12
  4. Step 4: Simplify right side
    357.92x = 173,575.07
  5. Step 5: Solve for x
    x = 173,575.07/357.92
  6. Step 6: Final answer
    x = 484.95

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.