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Finding the Fourth Proportional to 498.03, 747.02 and 205.45

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Solution

The fourth proportional to 498.03, 747.02 and 205.45 is: 308.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    498.03 : 747.02 = 205.45 : x
  2. Step 2: Convert to fraction form
    498.03/747.02 = 205.45/x
  3. Step 3: Cross multiply
    498.03x = 747.02 × 205.45
  4. Step 4: Simplify right side
    498.03x = 153,472.75
  5. Step 5: Solve for x
    x = 153,472.75/498.03
  6. Step 6: Final answer
    x = 308.16

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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.