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Finding the Fourth Proportional to 325.08, 483.91 and 320.22

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Solution

The fourth proportional to 325.08, 483.91 and 320.22 is: 476.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    325.08 : 483.91 = 320.22 : x
  2. Step 2: Convert to fraction form
    325.08/483.91 = 320.22/x
  3. Step 3: Cross multiply
    325.08x = 483.91 × 320.22
  4. Step 4: Simplify right side
    325.08x = 154,956.86
  5. Step 5: Solve for x
    x = 154,956.86/325.08
  6. Step 6: Final answer
    x = 476.67

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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.