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Finding the Fourth Proportional to 436.31, 602.10 and 239.82

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Solution

The fourth proportional to 436.31, 602.10 and 239.82 is: 330.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    436.31 : 602.10 = 239.82 : x
  2. Step 2: Convert to fraction form
    436.31/602.10 = 239.82/x
  3. Step 3: Cross multiply
    436.31x = 602.10 × 239.82
  4. Step 4: Simplify right side
    436.31x = 144,395.62
  5. Step 5: Solve for x
    x = 144,395.62/436.31
  6. Step 6: Final answer
    x = 330.95

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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.