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Finding the Fourth Proportional to 436.45, 602.29 and 239.96

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Solution

The fourth proportional to 436.45, 602.29 and 239.96 is: 331.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    436.45 : 602.29 = 239.96 : x
  2. Step 2: Convert to fraction form
    436.45/602.29 = 239.96/x
  3. Step 3: Cross multiply
    436.45x = 602.29 × 239.96
  4. Step 4: Simplify right side
    436.45x = 144,522.50
  5. Step 5: Solve for x
    x = 144,522.50/436.45
  6. Step 6: Final answer
    x = 331.14

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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.