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Finding the Fourth Proportional to 435.50, 653.13 and 204.25

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Solution

The fourth proportional to 435.50, 653.13 and 204.25 is: 306.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    435.50 : 653.13 = 204.25 : x
  2. Step 2: Convert to fraction form
    435.50/653.13 = 204.25/x
  3. Step 3: Cross multiply
    435.50x = 653.13 × 204.25
  4. Step 4: Simplify right side
    435.50x = 133,401.80
  5. Step 5: Solve for x
    x = 133,401.80/435.50
  6. Step 6: Final answer
    x = 306.32

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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.