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Finding the Fourth Proportional to 325.94, 488.72 and 223.35

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Solution

The fourth proportional to 325.94, 488.72 and 223.35 is: 334.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    325.94 : 488.72 = 223.35 : x
  2. Step 2: Convert to fraction form
    325.94/488.72 = 223.35/x
  3. Step 3: Cross multiply
    325.94x = 488.72 × 223.35
  4. Step 4: Simplify right side
    325.94x = 109,155.61
  5. Step 5: Solve for x
    x = 109,155.61/325.94
  6. Step 6: Final answer
    x = 334.89

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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.