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Finding the Fourth Proportional to 325.88, 488.19 and 289.52

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Solution

The fourth proportional to 325.88, 488.19 and 289.52 is: 433.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    325.88 : 488.19 = 289.52 : x
  2. Step 2: Convert to fraction form
    325.88/488.19 = 289.52/x
  3. Step 3: Cross multiply
    325.88x = 488.19 × 289.52
  4. Step 4: Simplify right side
    325.88x = 141,341.99
  5. Step 5: Solve for x
    x = 141,341.99/325.88
  6. Step 6: Final answer
    x = 433.72

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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.