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Finding the Fourth Proportional to 588.50, 881.88 and 328.20

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Solution

The fourth proportional to 588.50, 881.88 and 328.20 is: 491.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    588.50 : 881.88 = 328.20 : x
  2. Step 2: Convert to fraction form
    588.50/881.88 = 328.20/x
  3. Step 3: Cross multiply
    588.50x = 881.88 × 328.20
  4. Step 4: Simplify right side
    588.50x = 289,433.02
  5. Step 5: Solve for x
    x = 289,433.02/588.50
  6. Step 6: Final answer
    x = 491.81

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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.