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Finding the Fourth Proportional to 436.26, 655.59 and 230.94

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Solution

The fourth proportional to 436.26, 655.59 and 230.94 is: 347.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    436.26 : 655.59 = 230.94 : x
  2. Step 2: Convert to fraction form
    436.26/655.59 = 230.94/x
  3. Step 3: Cross multiply
    436.26x = 655.59 × 230.94
  4. Step 4: Simplify right side
    436.26x = 151,401.95
  5. Step 5: Solve for x
    x = 151,401.95/436.26
  6. Step 6: Final answer
    x = 347.05

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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.