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Finding the Fourth Proportional to 436.58, 602.49 and 240.09

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Solution

The fourth proportional to 436.58, 602.49 and 240.09 is: 331.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    436.58 : 602.49 = 240.09 : x
  2. Step 2: Convert to fraction form
    436.58/602.49 = 240.09/x
  3. Step 3: Cross multiply
    436.58x = 602.49 × 240.09
  4. Step 4: Simplify right side
    436.58x = 144,651.82
  5. Step 5: Solve for x
    x = 144,651.82/436.58
  6. Step 6: Final answer
    x = 331.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.