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Finding the Fourth Proportional to 360.60, 498.02 and 321.98

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Solution

The fourth proportional to 360.60, 498.02 and 321.98 is: 444.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    360.60 : 498.02 = 321.98 : x
  2. Step 2: Convert to fraction form
    360.60/498.02 = 321.98/x
  3. Step 3: Cross multiply
    360.60x = 498.02 × 321.98
  4. Step 4: Simplify right side
    360.60x = 160,348.38
  5. Step 5: Solve for x
    x = 160,348.38/360.60
  6. Step 6: Final answer
    x = 444.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.