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Finding the Fourth Proportional to 582.55, 873.61 and 217.33

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Solution

The fourth proportional to 582.55, 873.61 and 217.33 is: 325.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    582.55 : 873.61 = 217.33 : x
  2. Step 2: Convert to fraction form
    582.55/873.61 = 217.33/x
  3. Step 3: Cross multiply
    582.55x = 873.61 × 217.33
  4. Step 4: Simplify right side
    582.55x = 189,861.66
  5. Step 5: Solve for x
    x = 189,861.66/582.55
  6. Step 6: Final answer
    x = 325.91

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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.