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Finding the Fourth Proportional to 435.88, 655.26 and 433.48

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Solution

The fourth proportional to 435.88, 655.26 and 433.48 is: 651.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    435.88 : 655.26 = 433.48 : x
  2. Step 2: Convert to fraction form
    435.88/655.26 = 433.48/x
  3. Step 3: Cross multiply
    435.88x = 655.26 × 433.48
  4. Step 4: Simplify right side
    435.88x = 284,042.10
  5. Step 5: Solve for x
    x = 284,042.10/435.88
  6. Step 6: Final answer
    x = 651.65

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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.