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Finding the Fourth Proportional to 436.43, 602.28 and 239.95

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Solution

The fourth proportional to 436.43, 602.28 and 239.95 is: 331.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    436.43 : 602.28 = 239.95 : x
  2. Step 2: Convert to fraction form
    436.43/602.28 = 239.95/x
  3. Step 3: Cross multiply
    436.43x = 602.28 × 239.95
  4. Step 4: Simplify right side
    436.43x = 144,513.78
  5. Step 5: Solve for x
    x = 144,513.78/436.43
  6. Step 6: Final answer
    x = 331.13

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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.