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Finding the Fourth Proportional to 436.30, 602.10 and 239.83

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Solution

The fourth proportional to 436.30, 602.10 and 239.83 is: 330.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    436.30 : 602.10 = 239.83 : x
  2. Step 2: Convert to fraction form
    436.30/602.10 = 239.83/x
  3. Step 3: Cross multiply
    436.30x = 602.10 × 239.83
  4. Step 4: Simplify right side
    436.30x = 144,400.14
  5. Step 5: Solve for x
    x = 144,400.14/436.30
  6. Step 6: Final answer
    x = 330.97

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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.