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Finding the Fourth Proportional to 435.97, 652.80 and 299.28

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Solution

The fourth proportional to 435.97, 652.80 and 299.28 is: 448.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    435.97 : 652.80 = 299.28 : x
  2. Step 2: Convert to fraction form
    435.97/652.80 = 299.28/x
  3. Step 3: Cross multiply
    435.97x = 652.80 × 299.28
  4. Step 4: Simplify right side
    435.97x = 195,369.98
  5. Step 5: Solve for x
    x = 195,369.98/435.97
  6. Step 6: Final answer
    x = 448.13

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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.