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Finding the Fourth Proportional to 436.06, 601.56 and 331.12

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Solution

The fourth proportional to 436.06, 601.56 and 331.12 is: 456.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    436.06 : 601.56 = 331.12 : x
  2. Step 2: Convert to fraction form
    436.06/601.56 = 331.12/x
  3. Step 3: Cross multiply
    436.06x = 601.56 × 331.12
  4. Step 4: Simplify right side
    436.06x = 199,188.55
  5. Step 5: Solve for x
    x = 199,188.55/436.06
  6. Step 6: Final answer
    x = 456.79

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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.